You are given a question, its answer, and a sentence that supports the question, i.e., the answer to the question is inferable from the sentence. In this task, you need to paraphrase the given sentence so that the paraphrased sentence still supports the question i.e. you can still infer the answer to the question from the paraphrased sentence. Do not write a paraphrase with a minor change in the given sentence e.g. replacing the word "one" with "a". Instead, try to write a paraphrase that contains new words, i.e. the words that are not present in the input sentence.

Example Input: Question: All chemical reactions involve both reactants and what else? 
Answer: products. 
Sentence: All chemical reactions involve both reactants and products.
Example Output: All chemical reactions must include a reactant and a product.

Example Input: Question: The behavior of ideal gases is explained by what theory of gases? 
Answer: kinetic molecular theory. 
Sentence: The behavior of ideal gases is explained by kinetic molecular theory.
Example Output: Experts have theorized how ideal gases act and have named it the kinetic molecular theory.

Example Input: Question: Which of the following structures does a frog develop as it changes from a tadpole to an adult frog? 
Answer: lungs. 
Sentence: A frog does develop lungs structures as it changes from a tadpole to an adult frog.
Example Output:
A frog develops its lungs when it changes from a tadpole to an adult.