[Q]: The man closed the book.
What is the cause?

[A]: He finished reading it.

[Q]: The boy giggled uncontrollably.
What is the cause?

[A]: His brother tickled him.

[Q]: I moved to a new city.
What is the cause?

[A]: I found a better-paying job.

[Q]: The man threw his empty can onto the street.
What is the effect?

[A]:
He was fined for littering.