[Q]: The toddler started crying.

effect:
[A]: Her parents gave her a toy.
[Q]: The balloon expanded.

cause:
[A]: I blew into it.
[Q]: The fortune teller's revelations were convincing.

effect:
[A]: She received many returning customers.
[Q]: The boy's hands were shaking.

cause:
[A]:
He planned to ask the girl out.