passages.id: 1.0alpha7.train.879.sent
passages.type: sentence
passages.text: The effect is thought to arise through the non-specific binding of  transcription factors with the  PS backbone [ 2.
coreferences.id: 1.0alpha7.train.879.coref0
coreferences.entity_ids: 1.0alpha7.train.879.ent0_0