In this task, you will be given a short story or summary of a situation which is called a premise. Your task is to generate a question based on the given premise. The generated question (i) must be unambiguous, (ii) must be relevant to the premise, (iii) should require commonsense reasoning to get answered. You should not use any outside knowledge to generate the question.

A triangle is alone in the house not moving. A circle enters the door of the house and nudges the triangle.
The triangle starts moving around. What just happened?

There are a small triangle and a big triangle walking together. A circle starts running towards the small triangle. The big triangle then blocks the circle.
Why does the big triangle do this?

A big triangle knocks on the door. A small triangle answers the door and the triangles kiss and leave together.

Why do they leave together?