
Are the following mentions coreferent?:
<m> Polygamy </m> in Warren Jeffs Trial : Defends 'Spiritual' Marriage, Polygamy 
</s>
<m> polygamy </m> in The arrests of Winston K. Blackmore, 52, and James Oler, 44, on charges of polygamy were the culmination of the most recent seven-month charge assessment review by special prosecutor Terrence Robertson. Last June, Oppal hired Robertson to investigate whether charges should be laid against the openly polygamist members of the Bountiful commune, where older men routinely are married, legally and common-law, to much younger women. 