passages.id: 1.0alpha7.train.777.sent
passages.type: sentence
passages.text: It is conceivable that this cleft has evolved primarily to accommodate  p53, which binds  Mdm2 very tightly and is subject to stringent regulation by  Mdm2.
coreferences.id: 1.0alpha7.train.777.coref0
coreferences.entity_ids: 1.0alpha7.train.777.ent0_0 1.0alpha7.train.777.ent1_1
coreferences.id: 1.0alpha7.train.777.coref1
coreferences.entity_ids: 1.0alpha7.train.777.ent2_0