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

Input: Consider Input: Saturated hydrocarbons hydrocarbons contain only single bonds between carbon atoms.

Output: What hydrocarbons contain only single bonds between carbon atoms?


Input: Consider Input: Water, air, and milk list includes only examples of matter that can take the shape of a container.

Output: Which list includes only examples of matter that can take the shape of a container?


Input: Consider Input: Salts substances, which are distinct from acids and bases, form when ions form ionic bonds.


Output: What substances, which are distinct from acids and bases, form when ions form ionic bonds?