assertion  retraction  graph  subject              predicate        object               datatype  annotation
1          0           graph  obo:FOODON_00001158  rdfs:subClassOf  obo:FOODON_00001057  _IRI      
1          0           graph  obo:FOODON_00002277  rdfs:subClassOf  obo:FOODON_00001057  _IRI      
1          0           graph  obo:FOODON_00001163  rdfs:subClassOf  obo:FOODON_00001057  _IRI      
1          0           graph  obo:FOODON_00002141  rdfs:subClassOf  obo:FOODON_00001057  _IRI      
1          0           graph  obo:FOODON_00001151  rdfs:subClassOf  obo:FOODON_00001057  _IRI      
1          0           graph  obo:FOODON_00001150  rdfs:subClassOf  obo:FOODON_00001057  _IRI