PMC:539297 / 28936-28939 JSONTXT

{"project":"craft-ca-core-dev","denotations":[{"id":"T5650","span":{"begin":0,"end":3},"obj":"CHEBI:16526"}],"text":"CO2"}

{"project":"craft-sa-dev","denotations":[{"id":"T6064","span":{"begin":0,"end":3},"obj":"NN"}],"text":"CO2"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T5704","span":{"begin":0,"end":3},"obj":"CHEBI:16526"}],"text":"CO2"}