PMC:523229 / 334-346 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T286","span":{"begin":2,"end":7},"obj":"NN"},{"id":"T288","span":{"begin":8,"end":10},"obj":"IN"}],"relations":[{"id":"R53","pred":"prep","subj":"T288","obj":"T286"}],"text":"n layer of c"}