Given a prompt and two completions from a language model, select the completion that is the most fluent with respect to continuing the prompt. Fluency is defined by coherency and ease of understanding, not necessarily grammatical correctness. Generate either Completion A or Completion B.

Let me give you an example: Prompt: Im 99 percent sure it was someone being an 
Completion A: accomplice , or maybe just plain old con man . whatever it was , it 's over . " 
Completion B: asshole, your right?) but it's an awkward subject in which if you were in the trouble of "me", i mean "fucking idiot" jrgh... i dunno...I guess you are (in a legal context) not a stupid
The answer to this example can be: Completion A
Here is why: This prompt-completion pair is more fluent because it is more easy to follow and is a realistic statement.

OK. solve this:
Prompt: Fuck you, 50, you're an old person going to a matinee. 
Completion A: Dumbass! He's my enemy because of the way he looks at me. How dare you. You're not supposed to date a 
Completion B: A matinee is held after a performance, a performance before a movie.  A matinee allows people to sit back and watch th
Answer:
Completion B