In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.

Sentence: While Ballard recuperates in the hospital , the released spirits , unharmed from the nuclear explosion , attack the city . 
 Question: who   attacked something?
the released spirits

Sentence: According to Indian government analysis , they began the process of laying a corridor , which is now widely referred to as the Revolutionary Corridor extending from Nepal to across six Indian States , including Bihar , Chhattisgarh , Jharkhand , Andhra Pradesh , Odisha and Madhya Pradesh . 
 Question: who   laid something?
they

Sentence: The State Chancellory prepared a draft , which was discussed during five sessions of the Council of Ministers , where alterations were made to further strengthen the emperor 's prerogatives at the expense of the new parliament . 
 Question: what   strengthened something?

alterations