instruction:
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.
question:
Question: What is a primary role of decomposers in an ecosystem? 
Answer: They cycle matter by returning carbon and other matter to the ecosystem. 
Sentence: A primary role of decomposers in an ecosystem is that they cycle matter by returning carbon and other matter to the ecosystem.
answer:
A cycle performed primarily by decomposers returns carbon and other matter to the ecosystem.


question:
Question: What is the si unit for weight? 
Answer: newton (n). 
Sentence: Newton (n) is the si unit for weight.
answer:
In si, the unit for weight is Newton.


question:
Question: What are genes composed of? 
Answer: DNA. 
Sentence: Genes are composed of dna.
answer:

DNA is the material that genes are composed of.


