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 part is written first when naming an ionic compound? Answer: cation

Ex Output:
When naming an ionic compound, the cation is written first.


Ex Input:
Question: What is the third male reprodutive structure after the penis and testes? Answer: epididymis

Ex Output:
Epididymis is the third male reprodutive structure after the penis and testes.


Ex Input:
Question: What gives the order of electron filling in an atom? Answer: aufbau principle

Ex Output:

Aufbau principle gives the order of electron filling in an atom.