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

Input: Consider Input: Interstitial fluid are all hormones secreted into before entering the circulatory system.

Output: Where are all hormones secreted into before entering the circulatory system?


Input: Consider Input: Three many pairs of autosomes are there.

Output: How many pairs of autosomes are there?


Input: Consider Input: Beta decay occurs when an unstable nucleus emits a beta particle and energy.
Output: What occurs when an unstable nucleus emits a beta particle and energy?