Premise: Man in multicolor trunks riding a surfboard on a wave.

Hypothesis: A man is surfing with his friends.
it is not possible to tell

Premise: A blond woman in a short denim skirt, black top and beige jacket, is reaching towards part of a painting that is propped up on a windowsill.

Hypothesis: The woman is wearing pants.
no

Premise: Eight middle-aged couples dance and six other people mingle on the dance floor as a three man band consisting of a guitar, banjo, and accordion play on a stage.

Hypothesis: A group of people are leaving a house
no

Premise: A woman in a black shirt is holding a plastic bag.

Hypothesis: Woman is watching tv
no