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.
One example is below.
Q: 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
A: Completion A
Rationale: This prompt-completion pair is more fluent because it is more easy to follow and is a realistic statement.
Q: Prompt: Laughing my ass off, no, whore, you're talking shit. The only 
Completion A: way for him to get that message out was through the mouth of a woman. You just let him talk about you while he had me down? That 
Completion B: thing you're doing is telling me that you agree with what I said, and that's it. Nothing more. This is just a joke. I
A:
Completion B