
Are the following mentions coreferent?:
<m> polygamy </m> in Canadian authorities filed charges against the leader of a group that openly practices polygamy in British Columbia and has links to U.S. polygamist communities, local media reported. Winston Blackmore and another member of the Fundamentalist Church of Jesus Christ of Latter Day Saints ( FLDS) were arrested for violating a little-used law against polygamy, the Vancouver Sun reported on its website, citing court documents. The Vancouver Sun reported on its website that Winston Blackmore and another member of the FLDS had been arrested for violating a little-used law against polygamy. 
</s>
<m> POLYGAMY </m> in RCMP MAKE ARRESTS IN BC POLYGAMOUS COMMUNITY POLICE HAVE MOVED IN AND ARRESTED AT LEAST TWO MEN FROM The RELIGIOUS COMMUNITY OF BOUNTIFUL IN The BC INTERIOR.BC ATTORNEY GENERAL WALLY OPAL ISSUED A STATEMENT TODAY SAYING THAT TWO MEN, WINSTON BLACKMORE AND JAMES OLER, HAD BEEN ARRESTED  ON CHARGES OF POLYGAMY PURSUANT TO The CRIMINAL CODE. 