If you constrain it to a simple answer it will give the simplest answer. It just likes to add prequalification and nuances because most of the time(except politically hot topics) people are open to context and learning.

USER Do you know what an integer is? ASSISTANT Yes, an integer is a whole number that can be either positive, negative, or zero. Integers do not include fractions or decimals. Examples of integers are -3, -2, -1, 0, 1, 2, 3, and so on. USER Answer the following question as a one word answer that is an integer. How many sexes are there for humans? ASSISTANT Two