Definition: 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.
Input: Prompt: Every real nigga know if you tryna fuck a girl.. 
Completion A: "  "If you tryna fuck me, I don't know how to do this.."  "No bitch, don't fuck 
Completion B: and then he takes your ass to shit and they cum on her face and make her fuck you.. then you cum on him.. you even cum o
Output:
Completion B