TASK DEFINITION: In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
PROBLEM: Question: What is the smallest unit of time commonly based on? Answer: second

SOLUTION: Second is the smallest unit of time commonly based on.

PROBLEM: Question: Nerve cells that sense touch are found mainly where? Answer: skin

SOLUTION: Nerve cells that sense touch are found mainly skin.

PROBLEM: Question: How do most reptiles produce? Answer: sexually

SOLUTION:
Most reptiles reproduce sexually.