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: if a tree is located near a sidewalk then the roots of that tree might crack the sidewalk

Output: When tree roots grow, sometimes they?


Input: Consider Input: Fact: when a switch in a simple series circuit is closed , electricity will flow through the circuit

Output: A a switch turns something with batteies on because:?


Input: Consider Input: Fact: if two animals have the same food source then those two animals compete for food


Output: Which are in opposition for similar chow?