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 Q]: Question: Melanocytes are located in which layer of the epidermis? Answer: bottom
[EX A]: Melanocytes are located in the bottom layer of the epidermis.

[EX Q]: Question: The body contains how many types of muscle tissue? Answer: three
[EX A]: The body contains three types of muscle tissue.

[EX Q]: Question: The mole fraction of the solvent is just one minus the mole fraction of what? Answer: solute
[EX A]:
The mole fraction of the solvent is just one minus the mole fraction of solute.