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.

Ex Input:
Question: What is the smallest unit of time commonly based on? Answer: second

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


Ex Input:
Question: Which state of matter has the lowest density? Answer: gases

Ex Output:
Gases have the lowest density.


Ex Input:
Question: What is the main difference between eukaryotic and prokaryotic cells? Answer: eukaryotic cells have a nucleus

Ex Output:

The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus.


