PMC:1253828 / 265-274 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T289","span":{"begin":2,"end":9},"obj":"NN"}],"text":"a binding"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T155","span":{"begin":2,"end":9},"obj":"CHEMINF_GO_EXT:chemical_binding_or_bond_formation"}],"text":"a binding"}