
Are the following mentions coreferent?:
<m> confirmed </m> in T-Mobile USA has just confirmed the numerous rumors that it will introduce the latest model in the BlackBerry Curve series next month. T-Mobile USA has just confirmed the numerous rumors that it will introduce the latest model in the BlackBerry Curve series next month. 
</s>
<m> announced </m> in T - Mobile BlackBerry Q10 Pre - Order Begins April 29th for Business Customers on April 24, 2013 T - Mobile today announced that the BlackBerry Q10 will be added to its growing 4G LTE smartphone portfolio.