assertion  retraction  graph  subject          predicate        object           datatype    annotation
1          0           graph  obo:CHEBI_16899  rdfs:label       D-mannitol       xsd:string  
1          0           graph  obo:CHEBI_16899  oio:id           CHEBI:16899      xsd:string  
1          0           graph  obo:CHEBI_16899  rdfs:subClassOf  obo:CHEBI_29864  _IRI        
1          0           graph  obo:CHEBI_16899  rdf:type         owl:Class        _IRI