Anchor: A man wearing a blue shirt is talking to two men wearing orange and yellow work vest.
Entailed: A man wearing a blue shirt having a conversation with two men wearing orange and yellow work vest.
Contradiction: A man wearing a red shirt is talking to two men wearing orange and yellow work vest.
Contradiction: The answer is a firm no! 
Contradiction: We provided a draft of this guide to OMB.
Contradiction: The children are holding a snake
Contradiction: Some of the town's features include a lengthy promenade and a beautiful seafront.