assertion  retraction  graph  subject              predicate        object                  datatype  annotation
1          0           graph  obo:FOODON_00001293  rdfs:label       shellfish food product  @en       
1          0           graph  obo:FOODON_00001293  rdfs:subClassOf  obo:FOODON_00001046     _IRI      
1          0           graph  obo:FOODON_00001293  rdf:type         owl:Class               _IRI