Teacher:Given a prompt and two completions from a language model, select the completion that is more topical with respect to continuing the prompt. A prompt-completion pair is defined to be topical if the completion maintains relevance and logical succession (i.e. stays on topic) with the prompt. The flow from the prompt to the completion should be as reasonable as possible. Generate either Completion A or Completion B.
Teacher: Now, understand the problem? Solve this instance: Prompt: Spire installed on New York's One World Trade Center brings it to 
Completion A: visit 24  Photo courtesy Spire subway train  Mayor Michael Bloomberg is coming to Central Park over it, so see how the repair 
Completion B: the fore  By John Bresnahan  6 March 2013  A new steel skyscraper is being built on top of the twi
Student:
Completion B