passages.id: 1.0alpha7.train.733.sent
passages.type: sentence
passages.text: PcG proteins bind to  PREs  in vivo and package the adjacent chromatin into a closed repressed conformation.
coreferences.id: 1.0alpha7.train.733.coref0
coreferences.entity_ids: 1.0alpha7.train.733.ent0_0
coreferences.id: 1.0alpha7.train.733.coref1
coreferences.entity_ids: 1.0alpha7.train.733.ent1_0