assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  obo:CHEBI_32988  rdfs:subClassOf  obo:CHEBI_51143  _IRI      
1          0           graph  obo:CHEBI_35715  rdfs:subClassOf  obo:CHEBI_51143  _IRI      
1          0           graph  obo:CHEBI_37533  rdfs:subClassOf  obo:CHEBI_51143  _IRI      
1          0           graph  obo:CHEBI_35352  rdfs:subClassOf  obo:CHEBI_51143  _IRI      
1          0           graph  obo:CHEBI_35274  rdfs:subClassOf  obo:CHEBI_51143  _IRI      
1          0           graph  obo:CHEBI_35362  rdfs:subClassOf  obo:CHEBI_51143  _IRI