It is a single man and not group of guys and there are two young girls and not a single lady.
The question and answer are below.
Given the sentence "Man sitting in a van talks to two young girls." is it true that "A group of guys talk to a lady in a convertible."?
no

The bed of a pick up truck would be the best place to rest.
The question and answer are below.
Premise: "Two men in black shirts are resting in the bed of a pick-up truck."
Hypothesis: "Two men are sitting in a pick-up truck."
Do we know that the hypothesis entailed by the premise?
yes

When a dog is running in a wooded area he is somewhere other than running across the beach. Beaches are not in wooded areas.
The question and answer are below.
Given the sentence "A large black and tan dog is running across the snow in a wooded area." is it true that "A black and tan dog is running across the beach."?
no