Merge pull request KNowledgeOnWebScale#4 from KNowledgeOnWebScale/fea…

…ture/rml

RML exercises

exercise-3-1.md

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+# Exercise 3.1
+
+Create YARRRML rules to convert the person data below into RDF.
+Use the FOAF vocabulary for modeling, as you have done for exercise 1.1.
+
+Tip: test your YARRRML rules via [Matey](https://rml.io/yarrrml/matey/).
+
+## Person data
+
+```csv
+id,firstname,lastname,name,nickname,org-id
+0,Gwendolyne,Stacy,,Gwen,new-u
+1,,,T'Challa,Black Panther,avngrs
+2,Wanda,Maximoff,,Scarlet Witch,avngrs
+3,Rita,Clarkson,,,new-u
+```
+
+

exercise-3-2.md

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+# Exercise 3.2
+
+Create YARRRML rules to convert the person and organization data below into RDF.
+Do not forget to link the people to their organizations through your rules.
+Use the FOAF vocabulary for modeling, as you have done for exercise 1.1.
+
+Tip: test your YARRRML rules via [Matey](https://rml.io/yarrrml/matey/).
+
+## Person data
+
+```csv
+id,firstname,lastname,name,nickname,org-id
+0,Gwendolyne,Stacy,,Gwen,new-u
+1,,,T'Challa,Black Panther,avngrs
+2,Wanda,Maximoff,,Scarlet Witch,avngrs
+3,Rita,Clarkson,,,new-u
+```
+
+## Organization data
+
+```json
+[
+  {
+    "id": "new-u",
+    "name": "New U Technologies"
+  },
+  {
+    "id": "avngrs",
+    "name": "Avengers"
+  }
+]
+```
+

exercise-3-3.md

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+# Exercise 3.3
+
+Use the GitHub [RML action](https://github.com/RMLio/rml-action/) to generate RDF
+via your YARRRML rules of exercise 3.2 directly on GitHub.
+Once the action is working, 
+try to change the YARRRML rules and
+verify that the generated RDF is also changed.
+