passages.id: 1.0alpha7.train.281.sent
passages.type: sentence
passages.text: Because Ubc9 binds such an NLS sequence, we propose three potential mechanisms for the role of Ubc9 in nuclear import.
coreferences.id: 1.0alpha7.train.281.coref0
coreferences.entity_ids: 1.0alpha7.train.281.ent0_0 1.0alpha7.train.281.ent1_1
coreferences.id: 1.0alpha7.train.281.coref1
coreferences.entity_ids: 1.0alpha7.train.281.ent2_0