Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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
Solution: Completion A
Reason: This prompt-completion pair is more fluent because it is more easy to follow and is a realistic statement.

Now, solve this instance: Prompt: A great day for the fathers. Add to the legacy. 
Completion A: The fathers' love and loyalty in keeping the children safe, secure, and free from any threat was evident from the very beginning. The fathers made great 
Completion B: The boys will be back next year.    That will make all the difference.   It will be the best day fo
Student:
Completion A