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.
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Question: Question: What is another name for the vertebral column? 
Answer: backbone. 
Sentence: Backbone is another name for the vertebral column.

Answer: Also known as by the name of the backbone is the vertebral column.


Question: Question: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of what device? 
Answer: simple harmonic oscillator. 
Sentence: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of simple harmonic oscillator.

Answer: A simple harmonic oscillator is an uncomplicated type of device that consists of an object attached to a spring sliding on a frictionless surface.


Question: Question: The development of the respiratory system in the fetus begins at about? 
Answer: 4 weeks. 
Sentence: The development of the respiratory system in the fetus begins at about 4 weeks.

Answer:
A fetus will begin to develop a respiratory system at about 4 weeks.