Task: You need to read the given sentence and construct a question about the information present in the sentence. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is unique. The question must involve coreference resolution which is a task of clustering mentions in text that refer to the same underlying real world entities. For example let's take a sentence 'I voted for Obama because he was most aligned with my values, she said.' Here in this example 'I', 'my', and 'she' belong to the same cluster and 'Obama' and 'he' belong to the same cluster. Now let's discuss another example , original sentence: 'I voted for Trump because he was most aligned with my values',John said. Now here is the same sentence with resolved coreferences: 'John voted for Trump because Trump was most aligned with John's values',John said.
Categories: Question Generation
Domains: Commonsense

Positive examples:
input: Sentence: I was trying to open the lock with the key, but someone had filled the keyhole with chewing gum, and I couldn't get it out.
output: What couldn't I get out?
explanation: This question is based on the following sentence given- I was trying to open the lock with the key, but someone had filled the keyhole with chewing gum, and I couldn't get it out. From here it's clear that I couldn't get it out chewing gum and this is a good question since answer for this question is there in the sentence given.; input: Sentence: The dog chased the cat, which ran up a tree. It waited at the top.
output: Which waited at the top?
explanation: This question is based on the following sentence given- The dog chased the cat, which ran up a tree. It waited at the top. From here it's clear that cat waited at the top and this is a good question since answer for this question is there in the sentence given.; input: Sentence: The dog chased the cat, which ran up a tree. It waited at the bottom.
output: Which waited at the bottom?
explanation: This question is based on the following sentence given- The dog chased the cat, which ran up a tree. It waited at thee bottom. From here it's clear that dog is at bottom and cat is at top and also this is a good question since answer for this question is there in the sentence given.; input: Sentence: John was doing research in the library when he heard a hummer. He was very annoying.
output: Who was annoying?
explanation: This question is based on the following sentence given- John was doing research in the library when he heard a hummer. He was very annoying. From here it's clear that hummer was annoying and this is a good question since answer for this question is there in the sentence given.

Negative examples:
input: Sentence: The scientists are studying three species of fish that have recently been found living in the Indian Ocean. They appeared two years ago.
output: What are the names of the species of fish scientists are studying?
explanation: From the sentence given , we got to know that scientists are studying three species of fish but the names of these species are not mentioned in the given sentence. This is an example of a bad question because it is not answerable from the given sentence. Instead, select a sentence and create a question around it using interrogative words such as what, which, when, where, who, whom, whose, why, whether, how, how many etc. This way it would ensure that the question is answerable from the sentence.; input: Sentence: The scientists are studying three species of fish that have recently been found living in the Indian Ocean. They appeared two years ago.
output: How many scientists are studying?
explanation: From the sentence given, we got to know that scientists are studying three species of fish but the exact count of scientists is not mentioned in the given sentence. This is an example of a bad question because it is not answerable from the given sentence. Instead, select a sentence and create a question around it using interrogative words such as what, which, when, where, who, whom, whose, why, whether, how, how many etc. This way it would ensure that the question is answerable from the sentence.; input: Sentence: Kirilov ceded the presidency to Shatov because he was less popular.
output: When did Kirilov ceded the presidency to Shatov?
explanation: From the sentence given, we got to know that Kirilov hand overed the presidency to Shatov as he was less popular but when Kirilov hand overed the presidency to Shatov is never mentioned in the given sentence. This is an example of a bad question because it is not answerable from the given sentence. Instead, select a sentence and create a question around it using interrogative words such as what, which, when, where, who, whom, whose, why, whether, how, how many etc. This way it would ensure that the question is answerable from the sentence.; input: Sentence: There are too many deer in the park, so the park service brought in a small pack of wolves. The population should decrease over the next few years.
output: how many deers are expected to be present next year?
explanation: From the sentence given , we got to know that there are many deers in the park and due to this park management brought few  wolves to decrease deer population going further but the information regarding number of deers is never given in the sentence. This is an example of a bad question because it is not answerable from the given sentence. Instead, select a sentence and create a question around it using interrogative words such as what, which, when, where, who, whom, whose, why, whether, how, how many etc. This way it would ensure that the question is answerable from the sentence.