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 Input:
Question: Why do birds need a light-weight body? Answer: to stay aloft

Ex Output:
Birds need a light-weight body for to stay aloft.


Ex Input:
Question: What are the most numerous and diverse biochemical compounds? Answer: proteins

Ex Output:
Proteins are the most numerous and diverse biochemical compounds.


Ex Input:
Question: While similar to insects, what eight-legged invertebrates lack antennae or wings? Answer: arachnids

Ex Output:

While similar to insects, arachnids are eight-legged invertebrates that lack antennae or wings.