This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) the answer is unique, (iv) its answer is a continous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage 

Ex Input:
CHAPTER IV. 

Signor Andrea D'Arbino, searching vainly through the various rooms in the palace for Count Fabio d'Ascoli, and trying as a last resource, the corridor leading to the ballroom and grand staircase, discovered his friend lying on the floor in a swoon, without any living creature near him. Determining to avoid alarming the guests, if possible, D'Arbino first sought help in the antechamber. He found there the marquis's valet, assisting the Cavaliere Finello (who was just taking his departure) to put on his cloak. 

While Finello and his friend carried Fabio to an open window in the antechamber, the valet procured some iced water. This simple remedy, and the change of atmosphere, proved enough to restore the fainting man to his senses, but hardly--as it seemed to his friends--to his former self. They noticed a change to blankness and stillness in his face, and when he spoke, an indescribable alteration in the tone of his voice. 

"I found you in a room in the corridor," said D'Arbino. "What made you faint? Don't you remember? Was it the heat?" 

Fabio waited for a moment, painfully collecting his ideas. He looked at the valet, and Finello signed to the man to withdraw. 

"Was it the heat?" repeated D'Arbino. 

"No," answered Fabio, in strangely hushed, steady tones. "I have seen the face that was behind the yellow mask." 

"Well?" 

"It was the face of my dead wife." 

"Your dead wife!" 

"When the mask was removed I saw her face. Not as I remember it in the pride of her youth and beauty--not even as I remember her on her sick-bed--but as I remember her in her coffin." 

Ex Output:
Who was searching in vain?


Ex Input:
Karachi (; ALA-LC: , ; ) is the capital of the Pakistani province of Sindh. It is the most populous city in Pakistan, sixth most populous city proper in the world and the 8th most populous metropolitan city in the world. Ranked as a beta world city, the city is Pakistan's premier industrial and financial centre. Karachi is also Pakistan's most cosmopolitan city. Situated on the Arabian Sea, Karachi serves as a transport hub, and is home to two of Pakistan's two largest seaports, the Port of Karachi and Port Bin Qasim, as well as the busiest airport in Pakistan. 

Though the Karachi region has been inhabited for millennia, the city was founded as a fortified village named "Kolachi" in 1729. The settlement drastically increased in importance with the arrival of British East India company in the mid 19th century, who not only embarked on major works to transform the city into a major seaport, but also connected it with their extensive railway network. By the time of the Partition of British India, the city was the largest in Sindh with an estimated population of 400,000. Following the independence of Pakistan, the city's population increased dramatically with the arrival of hundreds of thousands of Muslim refugees from India. The city experienced rapid economic growth following independence, attracting migrants from throughout Pakistan and South Asia.

Ex Output:
Which province is Karachi located in?


Ex Input:
In 50 years of traveling, Colin McCorpuodale has visited every country in the world except three. And everywhere he goes, he sends himself a postcard. He always chooses a postcard with beautiful scenery . Usually he writes just a short message to himself. However, he wrote an interesting story on his latest one, from the Malians Island. Mr. McCorpuodale lives in London. On one of the walls in his room, you can see a large map of the world. There are hundreds of little red pins stuck in it. "These pins mean a lot to me." says Mr. McCorpuodale, "I follow the rule. I'm allowed to stick one in only if I've been in a place for more than 24 hours." Naturally, Mr. McCorpuodale has his favorite places. New Zealand, he describes as "a wonderful country". About China, he says, "This is the country in the world which is completely different. There is no European influence." Wherever he goes, Mr. McCorpuodale takes with him a photo of his wife, a candle, a shirt with a secret pocket and a pen. So why does he do it? For the postcards or the travels? Mr. McCorpuodale laughs, "Neither. Only for the meaningful life."

Ex Output:

Which islands did Colin visit recently?


