Sentence 1: On 31 December 2015 , Melvin returned to Purdue University as Defensive Line Coach for Darrell Hazell .
Sentence 2: On December 31 , 2015 , Melvin returned to Purdue University as the defensive line coach for Darrell Hazell .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?