This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.

[EX Q]: it 's funny how that works , is n't it ?
[EX A]: is n't that funny ?

[EX Q]: it 's five days since the hunt for steven hillmanended .
[EX A]: five days ago , the search for steven hillman ended .

[EX Q]: confidence intervals for the rankings were calculated , as was the distance to the efficient frontier .
[EX A]:
they calculated intervals of reliability to determine the order as well as distance from an effective border .