
Are the following mentions coreferent?:
<m> deliver </m> in Apple Inc on Tuesday ( Jan 6 ) introduced what it claims to be the world's thinnest and lightest 17-inch laptop with a new unibody aluminium enclosure and a built-in battery said to deliver up to eight hours of use and a lifespan three times longer than conventional laptop batteries. 
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<m> release </m> in The only hardware release at Macworld Expo 2009 was a predictable unibody upgrade for the 17-inch MacBook Pro, which Apple reports will have an eight-hour battery life. 