PMC:1564426 / 39602-39615 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T22278","span":{"begin":0,"end":5},"obj":"NNS"},{"id":"T22282","span":{"begin":6,"end":8},"obj":"IN"},{"id":"T22283","span":{"begin":9,"end":10},"obj":"NN"},{"id":"T22285","span":{"begin":10,"end":11},"obj":"HYPH"}],"relations":[{"id":"R6046","pred":"prep","subj":"T22282","obj":"T22278"}],"text":"forms of β-ca"}