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

Ex Input:
Sucrose is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond.

Ex Output:
What is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond?


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

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


Ex Input:
Based on the passage, to protect the emperor in the afterlife was the main purpose of the items found in the tomb complex.

Ex Output:

Based on the passage, what was the main purpose of the items found in the tomb complex?