Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Input: Consider Input: Fact: iron is always magnetic

Output: A person wants to mine something that will attract metals. The person decides to search out some?


Input: Consider Input: Fact: slope is a measure of the difference in elevation between one part of the land and another part of the land

Output: slope is a measure of the difference in elevation from the top to the base of a?


Input: Consider Input: Fact: tapping two objects together causes the particles in those objects to vibrate


Output: A tone is made when a hammer makes contact with?