diff --git a/Pipfile.lock b/Pipfile.lock
index 0b8b0c7..6b40d90 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -16,33 +16,56 @@
         ]
     },
     "default": {
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:899e2a40a8c4a1aec681feef45733de8a6c58f3f6a0dbed2eb6574b4387a77b6",
+                "sha256:951f0d8a5b7260e9db5e41d429285b5f451e928479f19d80818878527d36e95e"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==4.10.1"
+        },
         "isodate": {
             "hashes": [
-                "sha256:2e364a3d5759479cdb2d37cce6b9376ea504db2ff90252a2e5b7cc89cc9ff2d8",
-                "sha256:aa4d33c06640f5352aca96e4b81afd8ab3b47337cc12089822d6f322ac772c81"
+                "sha256:0751eece944162659049d35f4f549ed815792b38793f07cf73381c1c87cbed96",
+                "sha256:48c5881de7e8b0a0d648cb024c8062dc84e7b840ed81e864c7614fd3c127bde9"
             ],
-            "version": "==0.6.0"
+            "version": "==0.6.1"
         },
         "numpy": {
             "hashes": [
-                "sha256:03e311b0a4c9f5755da7d52161280c6a78406c7be5c5cc7facfbcebb641efb7e",
-                "sha256:0cdd229a53d2720d21175012ab0599665f8c9588b3b8ffa6095dd7b90f0691dd",
-                "sha256:312bb18e95218bedc3563f26fcc9c1c6bfaaf9d453d15942c0839acdd7e4c473",
-                "sha256:464b1c48baf49e8505b1bb754c47a013d2c305c5b14269b5c85ea0625b6a988a",
-                "sha256:5adfde7bd3ee4864536e230bcab1c673f866736698724d5d28c11a4d63672658",
-                "sha256:7724e9e31ee72389d522b88c0d4201f24edc34277999701ccd4a5392e7d8af61",
-                "sha256:837f0e3ed2a8bd3e1d84196efebeaa76233c0de8986c3041cebd90119ba09aba",
-                "sha256:8d36f7c53ae741e23f54793ffefb2912340b800476eb0a831c6eb602e204c5c4",
-                "sha256:951fefe2fb73f84c620bec4e001e80a80ddaa1b84dce244ded7f1e0cbe0ed34a",
-                "sha256:9588c6b4157f493edeb9378788dcd02cb9e6a6aeaa518b511a1c79d06cbd8094",
-                "sha256:9ce8300950f2f1d29d0e49c28ebfff0d2f1e2a7444830fbb0b913c7c08f31511",
-                "sha256:be39cca66cc6806652da97103605c7b65ee4442c638f04ff064a7efd9a81d50a",
-                "sha256:c3ab2d835b95ccb59d11dfcd56eb0480daea57cdf95d686d22eff35584bc4554",
-                "sha256:eb0fc4a492cb896346c9e2c7a22eae3e766d407df3eb20f4ce027f23f76e4c54",
-                "sha256:ec0c56eae6cee6299f41e780a0280318a93db519bbb2906103c43f3e2be1206c",
-                "sha256:f4e4612de60a4f1c4d06c8c2857cdcb2b8b5289189a12053f37d3f41f06c60d0"
-            ],
-            "version": "==1.17.0"
+                "sha256:00c9fa73a6989895b8815d98300a20ac993c49ac36c8277e8ffeaa3631c0dbbb",
+                "sha256:025b497014bc33fc23897859350f284323f32a2fff7654697f5a5fc2a19e9939",
+                "sha256:08de8472d9f7571f9d51b27b75e827f5296295fa78817032e84464be8bb905bc",
+                "sha256:1964db2d4a00348b7a60ee9d013c8cb0c566644a589eaa80995126eac3b99ced",
+                "sha256:2a9add27d7fc0fdb572abc3b2486eb3b1395da71e0254c5552b2aad2a18b5441",
+                "sha256:2d8adfca843bc46ac199a4645233f13abf2011a0b2f4affc5c37cd552626f27b",
+                "sha256:301e408a052fdcda5cdcf03021ebafc3c6ea093021bf9d1aa47c54d48bdad166",
+                "sha256:311283acf880cfcc20369201bd75da907909afc4666966c7895cbed6f9d2c640",
+                "sha256:341dddcfe3b7b6427a28a27baa59af5ad51baa59bfec3264f1ab287aa3b30b13",
+                "sha256:3a5098df115340fb17fc93867317a947e1dcd978c3888c5ddb118366095851f8",
+                "sha256:3c978544be9e04ed12016dd295a74283773149b48f507d69b36f91aa90a643e5",
+                "sha256:3d893b0871322eaa2f8c7072cdb552d8e2b27645b7875a70833c31e9274d4611",
+                "sha256:4fe6a006557b87b352c04596a6e3f12a57d6e5f401d804947bd3188e6b0e0e76",
+                "sha256:507c05c7a37b3683eb08a3ff993bd1ee1e6c752f77c2f275260533b265ecdb6c",
+                "sha256:58ca1d7c8aef6e996112d0ce873ac9dfa1eaf4a1196b4ff7ff73880a09923ba7",
+                "sha256:61bada43d494515d5b122f4532af226fdb5ee08fe5b5918b111279843dc6836a",
+                "sha256:69a5a8d71c308d7ef33ef72371c2388a90e3495dbb7993430e674006f94797d5",
+                "sha256:6a5928bc6241264dce5ed509e66f33676fc97f464e7a919edc672fb5532221ee",
+                "sha256:7b9d6b14fc9a4864b08d1ba57d732b248f0e482c7b2ff55c313137e3ed4d8449",
+                "sha256:a7c4b701ca418cd39e28ec3b496e6388fe06de83f5f0cb74794fa31cfa384c02",
+                "sha256:a7e8f6216f180f3fd4efb73de5d1eaefb5f5a1ee5b645c67333033e39440e63a",
+                "sha256:b545ebadaa2b878c8630e5bcdb97fc4096e779f335fc0f943547c1c91540c815",
+                "sha256:c293d3c0321996cd8ffe84215ffe5d269fd9d1d12c6f4ffe2b597a7c30d3e593",
+                "sha256:c5562bcc1a9b61960fc8950ade44d00e3de28f891af0acc96307c73613d18f6e",
+                "sha256:ca9c23848292c6fe0a19d212790e62f398fd9609aaa838859be8459bfbe558aa",
+                "sha256:cc1b30205d138d1005adb52087ff45708febbef0e420386f58664f984ef56954",
+                "sha256:dbce7adeb66b895c6aaa1fad796aaefc299ced597f6fbd9ceddb0dd735245354",
+                "sha256:dc4b2fb01f1b4ddbe2453468ea0719f4dbb1f5caa712c8b21bb3dd1480cd30d9",
+                "sha256:eed2afaa97ec33b4411995be12f8bdb95c87984eaa28d76cf628970c8a2d689a",
+                "sha256:fc7a7d7b0ed72589fd8b8486b9b42a564f10b8762be8bd4d9df94b807af4a089"
+            ],
+            "markers": "python_version < '3.11' and python_version >= '3.7'",
+            "version": "==1.21.5"
         },
         "pandas": {
             "hashes": [
@@ -66,122 +89,169 @@
         },
         "pyparsing": {
             "hashes": [
-                "sha256:6f98a7b9397e206d78cc01df10131398f1c8b8510a2f4d97d9abd82e1aacdd80",
-                "sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4"
+                "sha256:18ee9022775d270c55187733956460083db60b37d0d0fb357445f3094eed3eea",
+                "sha256:a6c06a88f252e6c322f65faf8f418b16213b51bdfaece0524c1c1bc30c63c484"
             ],
-            "version": "==2.4.2"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.0.7"
         },
         "python-dateutil": {
             "hashes": [
-                "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
-                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
+                "sha256:0123cacc1627ae19ddf3c27a5de5bd67ee4586fbdd6440d9748f8abb483d3e86",
+                "sha256:961d03dc3453ebbc59dbdea9e4e11c5651520a876d0f4db161e8674aae935da9"
             ],
-            "version": "==2.8.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==2.8.2"
         },
         "pytz": {
             "hashes": [
-                "sha256:26c0b32e437e54a18161324a2fca3c4b9846b74a8dccddd843113109e1116b32",
-                "sha256:c894d57500a4cd2d5c71114aaab77dbab5eabd9022308ce5ac9bb93a60a6f0c7"
+                "sha256:3672058bc3453457b622aab7a1c3bfd5ab0bdae451512f6cf25f64ed37f5b87c",
+                "sha256:acad2d8b20a1af07d4e4c9d2e9285c5ed9104354062f275f3fcd88dcef4f1326"
             ],
-            "version": "==2019.2"
+            "version": "==2021.3"
         },
         "rdflib": {
             "hashes": [
-                "sha256:58d5994610105a457cff7fdfe3d683d87786c5028a45ae032982498a7e913d6f",
-                "sha256:da1df14552555c5c7715d8ce71c08f404c988c58a1ecd38552d0da4fc261280d"
+                "sha256:8dbfa0af2990b98471dacbc936d6494c997ede92fd8ed693fb84ee700ef6f754",
+                "sha256:fc81cef513cd552d471f2926141396b633207109d0154c8e77926222c70367fe"
             ],
-            "version": "==4.2.2"
+            "markers": "python_version >= '3.7'",
+            "version": "==6.1.1"
+        },
+        "setuptools": {
+            "hashes": [
+                "sha256:2404879cda71495fc4d5cbc445ed52fdaddf352b36e40be8dcc63147cb4edabe",
+                "sha256:68eb94073fc486091447fcb0501efd6560a0e5a1839ba249e5ff3c4c93f05f90"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==60.5.0"
         },
         "six": {
             "hashes": [
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-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+                "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
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             ],
-            "version": "==1.12.0"
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==1.16.0"
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         "sparqlwrapper": {
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                 "sha256:21928e7a97f565e772cdeeb0abad428960f4307e3a13dbdd8f6d3da8a6a506c9",
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             "index": "pypi",
             "version": "==1.8.4"
+        },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:4ca091dea149f945ec56afb48dae714f21e8692ef22a395223bcd328961b6a0e",
+                "sha256:7f001e5ac290a0c0401508864c7ec868be4e701886d5b573a9528ed3973d9d3b"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==4.0.1"
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+            "hashes": [
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+                "sha256:b47250dd24f92b7dd6a0a8fc5244da14608f3ca90a5efcd37a3b1642fac9a375"
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+            "markers": "python_version >= '3.7'",
+            "version": "==3.7.0"
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     "develop": {
         "astroid": {
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+            "markers": "python_full_version >= '3.6.2'",
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         "backcall": {
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@@ -192,18 +262,19 @@
         },
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@@ -214,25 +285,26 @@
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@@ -242,53 +314,118 @@
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 }