Teacher:Given news headlines and an edited word. The original sentence has word within given format {word}. Create new headlines by replacing {word} in the original sentence with edit word. Classify news headlines into "Funny" and "Not Funny" that have been modified by humans using an edit word to make them funny. 
Teacher: Now, understand the problem? Solve this instance: News Headline: Trump reportedly believes Mueller will write a {letter} exonerating him in the Russia probe soon 
 Edit: song
Student:
Funny