TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: A frog develops its lungs when it changes from a tadpole to an adult.

PROBLEM: Question: On how many of the continents do birds live and breed? 
Answer: seven. 
Sentence: Birds live and breed on seven of the continents.

SOLUTION: Birds live and breath on all of the continents.

PROBLEM: Question: On a global scale, plants and other photosynthetic organisms have generated all of what element in the air? 
Answer: oxygen. 
Sentence: On a global scale, plants and other photosynthetic organisms have generated all of the oxygen in the air.

SOLUTION:
All of our oxygen is generated by photosynthetic organisms.