Detailed Instructions: In this task you are given a story and a question regarding that story. You must judge whether the question is answerable based on the info given to you. Label the instances as "Answerable" or "Not Answerable" based on your judgment. the story and the question are separated by a new line character.
Q: David wiped the sweat from his brow. He wondered if he were using the right tool He pressed the screwdriving just a little harder into the limestone. He thrust the tool and the rock gave way. It crumbled and fell to the floor.
Why did He thrust the tool?
A:
Answerable