PMC:1189073 / 19016-19026 JSONTXT

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{"project":"craft-ca-core-dev","denotations":[{"id":"T8283","span":{"begin":0,"end":10},"obj":"_FRAGMENT"}],"text":"surface of"}

{"project":"craft-sa-dev","denotations":[{"id":"T10552","span":{"begin":0,"end":7},"obj":"NN"},{"id":"T10554","span":{"begin":8,"end":10},"obj":"IN"}],"relations":[{"id":"R2600","pred":"prep","subj":"T10554","obj":"T10552"}],"text":"surface of"}