Question: A crater formed on the moon. What is the cause? OPTIONS:
- A comet passed by the moon.
- A comet collided with the moon.

Answer: A comet collided with the moon.

Question: The man closed the book. What is the cause? OPTIONS:
- He finished reading it.
- It provoked him to think.

Answer: He finished reading it.

Question: The woman pressed down on the piano key. What is the effect? OPTIONS:
- A sound played.
- The key got stuck.

Answer: A sound played.

Question: The host served dinner to his guests. What is the effect? OPTIONS:
- His guests were gracious.
- His guests went hungry.

Answer:
His guests were gracious.