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 do you call a substance that cannot be broken down to other substances by chemical reactions.? Answer: an element

SOLUTION: You call a substance that cannot be broken down to other substances by chemical reactions an element.

PROBLEM: Question: What type of energy travels through matter in wave form? Answer: sound

SOLUTION: Sound energy travels through matter in wave form.

PROBLEM: Question: How many limbs do all mammals have? Answer: four

SOLUTION:
All mammals have four limbs.