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

Input: Consider Input: What is the principle or uh when is the correlation occasionally positive?

Output: When is the correlation occasionally positive?


Input: Consider Input: Wht do rock units what happens deeper in the earth I mean under what type of compression do they become thicker and shorten?

Output: Rock units become thicker and shorten when placed under this type of compression. 


Input: Consider Input: Who is the hero who found a golden treasure no um killed a dragon on the Drachenfels?
Output: Who is the hero who killed a dragon on the Drachenfels?