
Are the following mentions coreferent?:
<m> announced </m> in Canadian authorities announced that two leaders of polygamous factions in Bountiful, British Columbia, have been arrested. 
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<m> announced </m> in Tim Shields and Attorney-General Wally Oppal announced Wednesday that the RCMP arrested two Bountiful residents, Winston K. Blackmore, 52, and James Oler, 44, on charges of polygamy. 