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.

[Q]: Question: Catecholamines are a class of amine hormones synthesised form which amino acid? Answer: tyrosine
[A]: Catecholamines are a class of amine hormones that when synthesised form the amino acid tyrosine.


[Q]: Question: When do weather balloons return to earth? Answer: when it bursts
[A]: When it bursts do weather balloons return to earth.


[Q]: Question: Which other planet in the solar system is the easiest to observe from earth? Answer: mars
[A]:
Mars other planet in the solar system is the easiest to observe from earth.