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: Anybody who did is a bitch nigga for 
Completion A: fuck's sake.""Dude, stop your bullshit, dude," a man repliesI'm doing this because I don't remember 
Completion B: doing that to me," he continued. "When the cops came I went into my house, and they shot me."  "They shot m
A:
Completion B