Premise: A man talking to a family unit holding some sort of probing device as they look on and smile to be polite.

Hypothesis: A person talks to people in the course of their work.
Relation: entailment

Hypothesis: A man talking to a Dad, and two kids while holding some sort of probing device as they look on and smile to be polite.
Relation: neutral

Hypothesis: A man talking to a family unit holding an umbrella as they look on and smile to be polite.
Relation: contradiction