
Are the following mentions coreferent?:
<m> add </m> in T - Mobile USA continues to add to its growing 4G LTE smartphone portfolio with the BlackBerry Q10. 
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<m> adding </m> in T-Mobile will be adding the BlackBerry Curve 8900 to their lineup come February. The press release doesn't get any more specific than that, but seems to lend authority to the previous leak, which indicated that the 18th would be the day. 