Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

[Q]: The planet Vulcan was predicted to explain the what with planet Mercury no Saturn?
[A]: The planet Vulcan was predicted to explain the what with planet Saturn?


[Q]: What do increased immune system sorry hormone levels cause in aging adults?
[A]: What do increased hormone levels cause in aging adults?


[Q]: What city principal no proper has a population of 1,345,596?
[A]:
What city proper has a population of 1,345,596?