assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  obo:CHEBI_31635  rdfs:subClassOf  obo:CHEBI_60004  _IRI      
1          0           graph  obo:CHEBI_5516   rdfs:subClassOf  obo:CHEBI_60004  _IRI      
1          0           graph  obo:CHEBI_3770   rdfs:subClassOf  obo:CHEBI_60004  _IRI