PMC:1208879 / 15418-15419 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T3880","span":{"begin":0,"end":1},"obj":"NN"}],"text":"G"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T3308","span":{"begin":0,"end":1},"obj":"CHEBI_EXT:guanine_nucleobase_or_nucleoside_or_nucleotide_molecular_entity_or_group"}],"text":"G"}