Premise: Two men holding skateboards and one man skateboarding.

Hypothesis: There are three skateboarders.
it is not possible to tell

Premise: A group people are racing a car with sand in the background.

Hypothesis: There are people thinking about racing
no

Premise: A couple kisses at a concert.

Hypothesis: Couple greeting each other with a kiss.
it is not possible to tell

Premise: A man in a plaid suit playing guitar with a woman and another man.

Hypothesis: A man is playing a song he wrote for his friends.
it is not possible to tell