You will be given a definition of a task first, then some input of the task.
You are given a dialog between 2 or more individuals. Within the dialog, there will be clues that indicate two individuals were or are dating. You will be prompted at the end to answer which Speaker (or named individual) is dating which other Speaker (or named individual).

Speaker 1: Uh, Phoebe, uh, I have... something I wanna say. 
Speaker 2: Oh my God, he's gonna do it now. Please, I cannot watch this, let's go. 
Speaker 3: I think we have some time. Have you ever heard him talk? "Uh, Phoebe, uh, I would be honored, uh..." Spit it out, David! 
Speaker 1: Uh, Phoebe, uh... you're an amazing woman, and the time we spent apart was, was unbearable. Of course the sanitation strikes in Minsk didn't help! 
Speaker 4: Sure, ok, yeah. 
Speaker 1: But well, now that we're together again, I don't ever want to be apart. So, to that end... 
Speaker 4: Oh my God, Mike! 
Speaker 1: It's David, actually! 
Speaker 4: No, Mike's here. 
Speaker 1: Hi Mike! 
Speaker 5: Hi David. Chandler. Monica... Oh! 
Speaker 2: IT'S THE HUMIDITY! 
Speaker 5: Hi Phoebe. 
Speaker 4: What are you, what are you doing here? 
Speaker 5: I have a question I need to ask you. 
Speaker 1: I have a question I was kinda gonna ask her myself. 
Speaker 5: Yeah, I understand, but before you do, she really needs to hear this. 
Speaker 1: Ok, would you care for my seat as well? 
Speaker 5: Actually yeah, that'll be great. 
Speaker 1: That's fair, you've had a long trip. 
Speaker 5: Phoebe, I love you. I mean, I missed you so much these last few months and I thought we were apart for a good reason, but then I suddenly realized that there was no reason good enough to keep me from spending the rest of my life with you. 
Speaker 1: Kinda stepped on the toes of what I was going to say. 
Speaker 5: Sorry David, but she really has to know this. 
Speaker 1: Alright, but after this I want to see you outside. If the rain stops. 
Speaker 5: You're the most incredible woman I've ever met. How can I lose you? Now, I don't actually have a ring... 
Speaker 1: I have a ring. 
Speaker 3: I wouldn't brag too much about that thing, big guy. 
Speaker 5: Phoebe, will you marry me? 
Speaker 4: No! 
Speaker 1: Um... Ha ha! 
Speaker 4: I love you. But I never needed a proposal from you. I just needed to know that we were headed somewhere, you know, that we had a future. 
Speaker 5: We can have any future you want. 
Speaker 1: Ok, I'm gonna take off. 
Speaker 4: David, I'm so sorry, I'm sorry. 
Speaker 1: Just so I know, if I had asked first... 
Speaker 4: Yeah, I might have said yes, but that would have been wrong. 
Speaker 1: Please, you don't have to explain. I mean, perhaps if I hadn't gone to Minsk things would have worked out for us. And I wouldn't have ruined my career, or lost that toe to frostbite. It was a good trip! 
Speaker 5: Is it ok if I hug you now? 
Speaker 4: Yes! 
Speaker 2: BECAUSE OF OUR MEDDLING! Alright? Speaker 5 is or was dating which Speaker?
Output:
Speaker 4