PMC:539297 / 273-278 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T212","span":{"begin":1,"end":2},"obj":"SYM"},{"id":"T213","span":{"begin":2,"end":3},"obj":"CD"}],"relations":[{"id":"R37","pred":"punct","subj":"T212","obj":"T213"}],"text":" ~1 k"}