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 Input:
it explained how a dozen robots could follow when one robot had been summoned , but only when needed and not otherwise .

Ex Output:
it could also explain why one robot was called upon when a robot was called , a dozen - but only when they needed to be .

Ex Input:
in the case of resident taxable persons , by contrast , net income can be established without difficulty .

Ex Output:
on the contrary , in the case of taxpayers-resident taxpayers , the net income can be found without difficulty , according to the commission 's view .

Ex Input:
it was bremen , changing his appearance , his form , his very thinking , so that he could penetrate the stronghold of the warlock lord .

Ex Output:
it was bremen who changed shape , form , even his mind so that he could reach the holding of the warlock lord .