Premise & hypothesis: Is the premise "A man in a black suit is walking up a street carrying an accordion file and a cellphone." true if "A man is riding a bike on a trail."?
A: no

Premise & hypothesis: Is the premise "A mother and two children are posing with funny faces." true if "A mother and her two children are taking a family photo."?
A: it is not possible to tell

Premise & hypothesis: Is the premise "Four people sit on a small island in the middle of a vast water." true if "The group of people are standed on an island."?
A: yes

Premise & hypothesis: Is the premise "A group of kids with an adult in the background coaching them while they are pulling on a green rope." true if "the children are wearing  blue and white striped uniforms"?
A:
it is not possible to tell