answer: Wen thinks D.C. is different with so many black people. #Person1# invites Wen to a black fraternity party.
documents: #Person1#: Hey, Wen! Welcome to D. C. ! Glad you came out to visit!
  #Person2#: Thanks for inviting me. Actually, I've never been anywhere with so many black people before. It's different.
  #Person1#: Howard is eighty percent black. But there are whites, and even Asians here. Thankfully, it's also coed.
  #Person2#: Great! Is your, too?
  #Person1#: Sorry, nope. But the Alpha Phi Alpha's are throwing a party tonight.
  #Person2#: That's a black fraternity, right? So we should see some dancing!