Puerto Rican unicameralism referendum, 2005
{'<entity_0>': 'Puerto Rican unicameralism referendum, 2005', '<entity_1>': '10 July 2005'}
[['Puerto Rican unicameralism referendum, 2005', 'point in time', '10 July 2005'], ['Puerto Rican unicameralism referendum, 2005', 'start time', '10 July 2005'], ['Puerto Rican unicameralism referendum, 2005', 'end time', '10 July 2005']]
A <entity_0> was held in Puerto Rico on <entity_1>.
['referendum']