
Are the following mentions coreferent?:
<m> Polygamy </m> in Warren Jeffs Trial : Defends 'Spiritual' Marriage, Polygamy 
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<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. 