[Q]: The bird couldn't fly.
What is the cause?

[A]: It injured its wing.

[Q]: I botched the job interview.
What is the cause?

[A]: The interviewer asked difficult questions.

[Q]: The bully stuck his foot out in front of his classmate.
What is the effect?

[A]: The bully's classmate tripped.

[Q]: The girl received a trophy.
What is the cause?

[A]:
She won a spelling bee.