Anchor: For example, Pfizer took 7 days to close its books versus the 3 to 4 day worldclass standard.
Entailed: It took 7 days for Pfizer to close its books.
Contradiction: The worldclass standard is 7 days to close books.
Contradiction: The man is mowing his yard.
Contradiction: North Carolina State. 
Contradiction: Loud shouts could be heard from around the room.
Contradiction: Novices should get instruction, though it is not required.