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: Which of the following statements best describes a complex machine? Answer: It is made of more than one simple machine.

SOLUTION: A complex machine is described by: it is made of more than one simple machine.

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

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

PROBLEM: Question: What term is used to describe the change in size or volume of a given mass with temperature? Answer: thermal expansion

SOLUTION:
The term thermal expansion is used to describe the change in size or volume of a given mass with temperature.