diff --git a/isatools/resources/json-context/w3c/isa_data_w3c_context.jsonld b/isatools/resources/json-context/w3c/isa_data_w3c_context.jsonld
deleted file mode 100644
index 97e9e95f..00000000
--- a/isatools/resources/json-context/w3c/isa_data_w3c_context.jsonld
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  "@context": {
-    "@language": "en",
-    "wd": "http://www.wikidata.org/entity/",
-    "xsd": "http://www.w3.org/2001/XMLSchema#",
-    "Data": "wd:Q5227290",
-    "type": {
-      "@id": "wd:P527",
-      "@type": "wd:Q5227290"
-    },
-    "identifier": {
-      "@id": "wd:P527",
-      "@type": "wd:Q853614"
-    },
-    "name": {
-      "@id": "wd:P527",
-      "@type": "wd:Q82799"
-    },
-    "comments": {
-      "@id": "wd:P6607",
-      "@type": "wd:Q58897583"
-    }
-  }
-}
\ No newline at end of file
diff --git a/isatools/resources/json-context/w3c/isa_material_w3c_context.jsonld b/isatools/resources/json-context/w3c/isa_material_w3c_context.jsonld
deleted file mode 100644
index 434fe569..00000000
--- a/isatools/resources/json-context/w3c/isa_material_w3c_context.jsonld
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  "@context": {
-    "@language": "en",
-    "wd": "http://www.wikidata.org/entity/",
-    "xsd": "http://www.w3.org/2001/XMLSchema#",
-    "Material": "wd:Q53617407",
-    "type": {
-      "@id": "wd:P527",
-      "@type": "wd:Q53617407"
-    },
-    "identifier": {
-      "@id": "wd:Q853614",
-      "@type": "@id"
-    },
-    "name": {
-      "@id": "wd:P1448",
-      "@type": "wd:Q82799"
-    },
-    "characteristics": {
-      "@id": "wd:P6532",
-      "@type": "wd:Q1207505"
-    },
-    "roles": {
-      "@id": "wd:P2868",
-      "@type": "wd:Q102293686"
-    },
-    "derivesFrom": {
-      "@id": "wd:P9072",
-      "@type": "wd:Q53617407"
-    }
-  }
-}
\ No newline at end of file
diff --git a/isatools/resources/json-context/w3c/isa_process_w3c_context.jsonld b/isatools/resources/json-context/w3c/isa_process_w3c_context.jsonld
deleted file mode 100644
index 901cb961..00000000
--- a/isatools/resources/json-context/w3c/isa_process_w3c_context.jsonld
+++ /dev/null
@@ -1,53 +0,0 @@
-{
-  "@context": {
-    "@language": "en",
-    "prov": "http://www.w3.org/ns/prov#",
-    "foaf": "http://xmlns.com/foaf/0.1/",
-    "dcterms": "http://purl.org/dc/terms/",
-    "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
-    "xsd": "http://www.w3.org/2001/XMLSchema#",
-    "Process": "prov:Activity",
-    "identifier": {
-      "@id": "prov:id",
-      "@type": "@id"
-    },
-    "name": {
-      "@id": "rdfls:Label",
-      "@type": "xsd:string"
-    },
-    "description": {
-      "@id": "dcterms:description",
-      "@type": "xsd:string"
-    },
-    "date": {
-      "@id": "prov:wasStartedate",
-      "@type": "xsd:date"
-    },
-    "executesProtocol": {
-      "@id": "prov:wasAssociatedWith",
-      "@type": "prov:Plan"
-    },
-    "parameterValues": {
-      "@id": "w3c:?",
-      "@type": "w3c:?"
-    },
-    "previousProcess": {
-      "@id": "w3c:?",
-      "@type": "w3c:?"
-    },
-    "nextProcess": {
-      "@id": "w3c:?",
-      "@type": "w3c:?"
-    },
-    "inputs": "prov:used",
-    "outputs": "prov:generated",
-    "performer": {
-      "@id": "prov:wasAttributedTo",
-      "@type": "prov:Person"
-    },
-    "comments": {
-      "@id": "rdfs:comment",
-      "@type": "xsd:string"
-    }
-  }
-}