PMC:340383 / 2756-2776 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T944","span":{"begin":14,"end":18},"obj":"VBN"},{"id":"T947","span":{"begin":5,"end":9},"obj":"NN"},{"id":"T948","span":{"begin":1,"end":4},"obj":"NN"},{"id":"T949","span":{"begin":10,"end":13},"obj":"VBD"}],"relations":[{"id":"R464","pred":"compound","subj":"T948","obj":"T947"},{"id":"R465","pred":"auxpass","subj":"T949","obj":"T944"}],"text":" M13 tail was used f"}