Task: Paraphrasing
Input (English): Question: If the dna from all 46 chromosomes in a human cell nucleus was laid out end to end, it would measure approximately how long? 
Answer: two meters. 
Sentence: If the dna from all 46 chromosomes in a human cell nucleus was laid out end to end, it would measure approximately two meters long.
Output (English): If you took all the DNA from a human cell, which includes DNA from 46 chromosomes, and laid it out end to end, it would measure about two meters long.