# filename: ex074.ttl

@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . 
@prefix c: <http://learningsparql.com/ns/citations#> . 
@prefix : <http://learningsparql.com/ns/papers#> .

:paperA dc:title "Paper A" . 

:paperB rdfs:label "Paper B" ;
        c:cites :paperA . 

:paperC c:cites :paperA . 

:paperD c:cites :paperA , :paperB . 

:paperE c:cites :paperA . 

:paperF c:cites :paperC , :paperE . 

:paperG c:cites :paperC , :paperE . 

:paperH c:cites :paperD . 

:paperI c:cites :paperF , :paperG .