Given a text passage as input comprising of dialogue of negotiations between a seller and a buyer about the sale of an item, your task is to classify the item being sold into exactly one of these categories: 'housing', 'furniture', 'bike', 'phone', 'car', 'electronics'. The output should be the name of the category from the stated options and there should be exactly one category for the given text passage.

[Q]: Seller: Hello, are you interested in this bike?
Buyer: Hello, I am interested in the bike.
Seller: Do you have any questions about it?
Buyer: It seems like it's in great shape, but are there any issues with it that aren't listed? I am on a budget on what I can spend so I need a good deal please :)
Seller: None, at all. Like I posted it's all custom built and if you have issues you can bring it in and we'll fix it for you. 
Buyer: Okay, sounds good. I would like to offer 485 for the bike. I know it may sell new higher, but even though it's a great bike, it's still used so more likely to have some issues pop up sooner.
Seller: Yes, not going to be able to do it at that price. The parts cost more than that. 
Buyer: Well, as I really am on a budget, I can go up to 532, but that is really the most I can pay for the bike. I just can't afford a higher price.
Seller: The lowest I can go is 600.
Buyer: Let's meet in the middle at 550 and that would work out well for both of us.
Seller: Ok that works for me. Thank-you.
Seller: 
Buyer: 

[A]: bike


[Q]: Buyer: I am interested in your iphone 6S. Please tell me a little more about the scuff near the charging port.
Seller: Thanks for contacting me! It is actually just a little scuff, it is really nothing major and does not affect the charging port in any way. I did not mention in the ad, but the phone comes with the case and its charger. 
Buyer: When did he buy the phone?
Seller: He bought it a year ago. Still like new. You can come down and check it out before you make any obligations, of course. Also, I am willing to negotiate the right price for you. 
Buyer: I'm willing to pay cash tonight but your price is too high for me. How about $375.
Seller: That's a little low. I'm willing to let it go for $395 though. Come on, it's a great phone and worth it. 
Buyer: I'll pay $395
Buyer: 
Seller: Great! I'll send you my address via email and you can pop in anytime. 
Seller: 

[A]: phone


[Q]: Buyer: Would you sell them for 100?
Seller: There is no way I can go that low.  I am certain to get more than double that from a different buyer.  They are sweet!
Buyer: I suppose it up to you to decide how much your time is worth.  Who knows how long it would take to get your asking price, They are a niche item, not too many buyers out there.  I could go up to 120
Seller: I agree that they are a specialty item, and that makes them work at least $200.  I just posted this ad and haven't even shared it with my friends at the club.
Buyer: Alright I'll leave it up to you then.  You can have 130 dollars in cash or 200 dollars worth of bike parts you're not using.  Your call 
Buyer: 
Seller: 

[A]:
bike