Premise: A long, green board that has "lovely" written on it.

Hypothesis: A board is in a school
it is not possible to tell

Premise: Street musicians playing a accordion, violin and a guitar.

Hypothesis: The streeth musicians were fighting each other
no

Premise: A person with a construction vest is using a lawn tool to cut hedges off the top of a bush

Hypothesis: A man is outside.
yes

Premise: The sky is blue

Hypothesis: It is daytime.
yes