Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: Protists are thought to be the oldest eukaryotes.

Output: What is thought to be the oldest eukaryotes?


Input: Consider Input: Collision theory states that chemical reactions occur when atoms, ions, or molecules collide.

Output: What states that chemical reactions occur when atoms, ions, or molecules collide?


Input: Consider Input: Space is beyond the atmosphere.


Output: What is beyond the atmosphere?