PMC:516044 / 30676-30679 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T7451","span":{"begin":0,"end":3},"obj":"NN"}],"text":"CO2"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T7323","span":{"begin":0,"end":3},"obj":"CHEBI:16526"}],"text":"CO2"}

{"project":"craft-ca-core-dev","denotations":[{"id":"T7254","span":{"begin":0,"end":3},"obj":"CHEBI:16526"}],"text":"CO2"}