Anchor: A man with glasses is playing his instrument in a small crown of people that includes another man in a suit with a trumpet.
Entailed: Two men have their instruments with them.
Contradiction: The man forgot to bring his instrument today.
Contradiction:  I didn't get any of them. 
Contradiction: A man is dressed up
Contradiction: There are several Asian men sitting cross legged on a concrete floor.
Contradiction: We have more than one sleeping bag that we bring camping with us.