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.

Input: Consider Input: Question: Which observation demonstrates that light waves travel much faster than sound waves? Answer: An exploding firework is seen before it is heard.

Output: An exploding firework is seen before it is heard observation demonstrates that light waves travel much faster than sound waves.

Input: Consider Input: Question: The sun and all objects held by it's gravity make up the? Answer: solar system

Output: The sun and all objects held by it's gravity make up the solar system.

Input: Consider Input: Question: Catecholamines are a class of amine hormones synthesised form which amino acid? Answer: tyrosine
Output: Catecholamines are a class of amine hormones that when synthesised form the amino acid tyrosine.