
Are the following mentions coreferent?:
<m> announce </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> confirmed </m> in T - Mobile US Confirms They will Carry the BlackBerry Q10 on April 24th, 2013 They can expect more carriers to be coming out talking about the Q10 but T - Mobile is the first in the US. They just confirmed that they will carry the device though they said nothing about availability and pricing. 