@prefix ex: <http://example.org/> .

# Instances only. The classes and properties they use are declared in ontology.ttl.

# --- Institutions ----------------------------------------------------------

ex:mit  a ex:Institution ;
    ex:instName "MIT" ;
    ex:country  "USA" .

ex:eth  a ex:Institution ;
    ex:instName "ETH Zürich" ;
    ex:country  "Switzerland" .

ex:oxford  a ex:Institution ;
    ex:instName "University of Oxford" ;
    ex:country  "UK" .

# --- Researchers -----------------------------------------------------------

ex:alice  a ex:Researcher ;
    ex:fullName       "Alice Smith" ;
    ex:orcid          "0000-0001-0001-0001" ;
    ex:affiliatedWith ex:mit ;
    ex:authorOf       ex:paper1 .

ex:bob  a ex:Researcher ;
    ex:fullName       "Bob Jones" ;
    ex:orcid          "0000-0001-0002-0002" ;
    ex:affiliatedWith ex:eth ;
    ex:authorOf       ex:paper2 .

ex:carol  a ex:Researcher ;
    ex:fullName       "Carol Wu" ;
    ex:orcid          "0000-0001-0003-0003" ;
    ex:affiliatedWith ex:oxford ;
    ex:authorOf       ex:paper3 .

ex:dave  a ex:Researcher ;
    ex:fullName       "Dave Müller" ;
    ex:orcid          "0000-0001-0004-0004" ;
    ex:affiliatedWith ex:eth ;
    ex:authorOf       ex:paper4 .

# --- Publications ----------------------------------------------------------

ex:paper1  a ex:Publication ;
    ex:title "Graph Databases: A Survey" ;
    ex:year  2021 ;
    ex:doi   "10.1234/paper1" .

ex:paper2  a ex:Publication ;
    ex:title "Knowledge Graphs in Practice" ;
    ex:year  2022 ;
    ex:doi   "10.1234/paper2" ;
    ex:cites ex:paper1 .

ex:paper3  a ex:Publication ;
    ex:title "Ontology-Driven Data Integration" ;
    ex:year  2023 ;
    ex:doi   "10.1234/paper3" ;
    ex:cites ex:paper2 .

ex:paper4  a ex:Publication ;
    ex:title "SPARQL Query Optimization Techniques" ;
    ex:year  2024 ;
    ex:doi   "10.1234/paper4" ;
    ex:cites ex:paper3 .