Assignment 4

Assignment4/Raaquel09-b190231/task06.py

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+# -*- coding: utf-8 -*-
+"""Task06.ipynb
+
+Automatically generated by Colab.
+
+Original file is located at
+    https://colab.research.google.com/drive/18oCBCzPclqA8ETm62lUF8wbcfvqWEmMV
+
+**Task 06: Modifying RDF(s)**
+"""
+
+!pip install rdflib
+github_storage = "https://raw.githubusercontent.com/FacultadInformatica-LinkedData/Curso2024-2025/master/Assignment4/course_materials"
+
+"""Read the RDF file as shown in class"""
+
+from rdflib import Graph, Namespace, Literal
+from rdflib.namespace import RDF, RDFS
+g = Graph()
+g.namespace_manager.bind('ns', Namespace("http://somewhere#"), override=False)
+g.namespace_manager.bind('vcard', Namespace("http://www.w3.org/2001/vcard-rdf/3.0#"), override=False)
+g.parse(github_storage+"/rdf/example5.rdf", format="xml")
+
+"""Create a new class named Researcher"""
+
+ns = Namespace("http://somewhere#")
+g.add((ns.Researcher, RDF.type, RDFS.Class))
+for s, p, o in g:
+  print(s,p,o)
+
+"""**TASK 6.1: Create a new class named "University"**
+
+"""
+
+# TO DO
+ns = Namespace("http://somewhere#")
+g.add((ns.University, RDF.type, RDFS.Class))
+# Visualize the results
+for s, p, o in g:
+  print(s,p,o)
+
+"""**TASK 6.2: Add "Researcher" as a subclass of "Person"**"""
+
+# TO DO
+ns = Namespace("http://somewhere#")
+g.add((ns.Researcher, RDFS.subClassOf, ns.Person))
+# Visualize the results
+for s, p, o in g:
+  print(s,p,o)
+
+"""**TASK 6.3: Create a new individual of Researcher named "Jane Smithers"**"""
+
+# TO DO
+ns = Namespace("http://somewhere#")
+g.add((ns.JaneSmithers, RDF.type, ns.Researcher))
+# Visualize the results
+for s, p, o in g:
+  print(s,p,o)
+
+"""**TASK 6.4: Add to the individual JaneSmithers the email address, fullName, given and family names. Use the https://schema.org vocabulary**"""
+
+# TO DO
+ns = Namespace("http://somewhere#")
+SCHEMA = Namespace("https://schema.org/")
+g.add((ns.JaneSmithers, SCHEMA.Email, Literal("[email protected]")))
+g.add((ns.JaneSmithers, SCHEMA.FN, Literal("Jane Smithers")))
+g.add((ns.JaneSmithers, SCHEMA.Given, Literal("Jane")))
+g.add((ns.JaneSmithers, SCHEMA.Family, Literal("Smithers")))
+# Visualize the results
+for s, p, o in g:
+    print(s, p, o)
+
+"""**TASK 6.5: Add UPM as the university where John Smith works. Use the "https://example.org/ namespace**"""
+
+# TO DO
+ns = Namespace("http://somewhere#")
+SCHEMA = Namespace("https://schema.org/")
+EX = Namespace("https://example.org/")
+g.add((EX.upm, SCHEMA.name, Literal("UPM")))
+g.add((ns.JohnSmith, RDF.type, ns.Researcher))
+g.add((ns.JohnSmith, SCHEMA.worksFor, EX.upm))
+# Visualize the results
+for s, p, o in g:
+    print(s, p, o)
+
+"""**Task 6.6: Add that Jown knows Jane using the FOAF vocabulary. Make sure the relationship exists.**"""
+
+# TO DO
+ns = Namespace("http://somewhere#")
+FOAF = Namespace("http://xmlns.com/foaf/0.1/")
+g.add((ns.JohnSmith, FOAF.knows, ns.JaneSmithers))
+# Visualize the results
+for s, p, o in g:
+    print(s, p, o)

Assignment4/Raaquel09-b190231/task07.py

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+# -*- coding: utf-8 -*-
+"""Task07.ipynb
+
+Automatically generated by Colab.
+
+Original file is located at
+    https://colab.research.google.com/drive/1hzCxRzLLr7tRG1Ql9Qf7xnYVL3-ewL0I
+
+**Task 07: Querying RDF(s)**
+"""
+
+!pip install rdflib
+github_storage = "https://raw.githubusercontent.com/FacultadInformatica-LinkedData/Curso2024-2025/master/Assignment4/course_materials"
+
+"""First let's read the RDF file"""
+
+from rdflib import Graph, Namespace, Literal
+from rdflib.namespace import RDF, RDFS
+g = Graph()
+g.namespace_manager.bind('ns', Namespace("http://somewhere#"), override=False)
+g.namespace_manager.bind('vcard', Namespace("http://www.w3.org/2001/vcard-rdf/3.0#"), override=False)
+g.parse(github_storage+"/rdf/example6.rdf", format="xml")
+
+"""**TASK 7.1: List all subclasses of "LivingThing" with RDFLib and SPARQL**"""
+
+from rdflib.plugins.sparql import prepareQuery
+from rdflib import FOAF
+
+ns = Namespace("http://somewhere#")
+VCARD = Namespace("http://www.w3.org/2001/vcard-rdf/3.0#")
+
+q1 = prepareQuery('''
+  PREFIX ns: <http://somewhere#>
+  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+  PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+  PREFIX vcard: <http://www.w3.org/2001/vcard-rdf/3.0/>
+
+  SELECT ?subclass WHERE {
+  ?subclass rdfs:subClassOf <http://somewhere#LivingThing> .
+}
+  ''',
+  initNs = {"ns": ns, "foaf" : FOAF, "vcard" : VCARD}
+)
+
+# Visualize the results
+
+for r in g.query(q1):
+  print(r)
+
+"""**TASK 7.2: List all individuals of "Person" with RDFLib and SPARQL (remember the subClasses)**
+
+"""
+
+q2 = prepareQuery('''
+  PREFIX ns: <http://somewhere#>
+  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+  PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+  PREFIX vcard: <http://www.w3.org/2001/vcard-rdf/3.0/>
+
+
+SELECT ?individuals WHERE {
+  {
+    ?individuals a ns:Person
+  } UNION {
+    ?subclass rdfs:subClassOf ns:Person .
+    ?individuals a ?subclass .
+  }
+}
+  ''',
+  initNs = {"ns": ns, "foaf" : FOAF, "vcard" : VCARD}
+)
+
+# Visualize the results
+
+for r in g.query(q2):
+  print(r)
+
+"""**TASK 7.3: List all individuals of just "Person" or "Animal". You do not need to list the individuals of the subclasses of person (in SPARQL only)**
+
+"""
+
+q3 = prepareQuery('''
+  PREFIX ns: <http://somewhere#>
+  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+  PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+  PREFIX vcard: <http://www.w3.org/2001/vcard-rdf/3.0/>
+
+SELECT ?individuals WHERE {
+  { ?individuals a ns:Person }
+  UNION
+  { ?individuals a ns:Animal }
+}
+  ''',
+  initNs = {"ns": ns, "foaf" : FOAF, "vcard" : VCARD}
+)
+
+# Visualize the results
+
+for r in g.query(q3):
+  print(r)
+
+"""**TASK 7.4:  List the name of the persons who know Rocky (in SPARQL only)**"""
+
+q4 = prepareQuery('''
+  PREFIX ns: <http://somewhere#>
+  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+  PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+  PREFIX vcard: <http://www.w3.org/2001/vcard-rdf/3.0/>
+
+SELECT ?name WHERE {
+  ?person a ns:Person .
+  ?person foaf:knows ns:RockySmith .
+  ?person vcard:FN ?name .
+}
+  ''',
+  initNs = {"ns": ns, "foaf" : FOAF, "vcard" : VCARD}
+)
+
+# Visualize the results
+
+for r in g.query(q4):
+  print(r)
+
+"""**Task 7.5: List the name of those animals who know at least another animal in the graph (in SPARQL only)**"""
+
+q5 = prepareQuery('''
+  PREFIX ns: <http://somewhere#>
+  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+  PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+  PREFIX vcard: <http://www.w3.org/2001/vcard-rdf/3.0/>
+
+SELECT ?animalName WHERE {
+  ?animal a ns:Animal .
+  ?animal foaf:knows ?otherAnimal .
+  ?otherAnimal a ns:Animal .
+  ?animal vcard:Given ?animalName .
+}
+  ''',
+  initNs = {"ns": ns, "foaf" : FOAF, "vcard" : VCARD}
+)
+
+# Visualize the results
+
+for r in g.query(q5):
+  print(r)
+
+"""**Task 7.6: List the age of all living things in descending order (in SPARQL only)**"""
+
+q6 = prepareQuery('''
+  PREFIX ns: <http://somewhere#>
+  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+  PREFIX foaf: <http://xmlns.com/foaf/0.1/>
+  PREFIX vcard: <http://www.w3.org/2001/vcard-rdf/3.0/>
+
+SELECT ?livingThings ?age WHERE {
+  {
+        ?livingThing a ?subclass .
+        ?subclass rdfs:subClassOf* ns:LivingThing .
+    }
+    ?livingThing foaf:age ?age .
+    FILTER(?age > 0)
+}
+ORDER BY DESC(?age)
+  ''',
+  initNs = {"ns": ns, "foaf" : FOAF, "vcard" : VCARD}
+)
+
+# Visualize the results
+
+for r in g.query(q6):
+  print(r)