
Are the following mentions coreferent?:
<m> launch </m> in T-Mobile has officially announce that they will launch the new RIM BlackBery Curve 8900 sometime in mid-February. Previously, the date of February 11 was leaked. 
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<m> Launch </m> in BlackBerry Q10 Preorders Launch on T - Mobile April 29 April 24, 2013 BlackBerry's new Q10 smartphone will be available for preorder for business customers on T - Mobile's website April 29, according to an online statement by the carrier. 