TASK DEFINITION: In this task, you are given a sentence and a verb from the sentence. Your task is to generate a set of wh-questions starting with who, what, when, where, why, how, how much. The generated questions must contain the verb and the answers to these questions are phrases in the input sentence. The answer to the questions is associated with a specific semantic role. The answer to these questions is associated with a specific semantic role. The questions must use pronouns instead of direct nouns that could be used to refer to various roles present in the sentence. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is unique (iii) its answer is a continuous text span from the paragraph.
PROBLEM: Sentence: The `` power cepstrum '' was defined in a 1963 paper by Bogert et al. . 
 Verb: defined

SOLUTION: what was  defined?

PROBLEM: Sentence: The reason she is worshiped with the ancestors is because the beloved dead are her children . 
 Verb: worshiped

SOLUTION: who is  worshiped?

PROBLEM: Sentence: A federated identity in information technology is the means of linking a person 's electronic identity and attributes , stored across multiple distinct identity management systems . 
 Verb: stored

SOLUTION:
what is  stored?