Premise: A group of people are inside a building and one man with a black bandanna is sitting looking at the camera.

Hypothesis: A group of people are sitting inside a lobby eating lunch with each other.
Relation: contradiction

Hypothesis: A group of people are inside a building and one of the men is staring at a camera.
Relation: entailment

Hypothesis: A group of people are casing a joint that they plan to rob so one of them looks for cameras.
Relation: neutral