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): A human cell nucleus typically has 46 chromosomes which, laid out end to end, would measure out to about two meters.