
Are the following mentions coreferent?:
<m> added </m> in T - Mobile USA Announces BlackBerry Q10 Availability T - Mobile announced today that the BlackBerry Q10 smartphone device will be added to its growing 4G LTE smartphone portfolio. T - Mobile USA continues to add to its growing 4G LTE smartphone portfolio with the BlackBerry Q10. The BlackBerry Q10 combines BlackBerry's classic QWERTY keyboard and a touch screen with the power of the BlackBerry 10 platform that delivers all the speed and connectivity customers demand to help them keep moving. 
</s>
<m> add </m> in T - Mobile USA continues to add to its growing 4G LTE smartphone portfolio with the BlackBerry Q10. 