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

Input: Consider Input: Constructive forces type of forces are involved when deposited rock forms deltas or barrier islands.

Output: What type of forces are involved when deposited rock forms deltas or barrier islands?


Input: Consider Input: Unicellular eukaryotes are protists normally.

Output: What type of eukaryotes are protists normally?


Input: Consider Input: The atoms of a compound are held together by chemical bonds.


Output: The atoms of a compound are held together by what type of bonds?