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.

Let me give you an example: The small triangle was angry at the big triangle. The big triangle ran away
The answer to this example can be: Why did the big triangle ran away?
Here is why: The output question can be answered by reading the input premise. Also, the question lies within the context of the premise. So, it is a good question.

OK. solve this:
A big triangle and a small triangle are arguing. The small triangle hits the big triangle. The big triangle picks up the little triangle and starts carrying the little triangle to the building.
Answer:
Why?