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: I'm selling this two-person bike. Great quality and good condition. Nice for a bike ride with a friend.
Buyer: HI, i'm interested in buying your tandem bike. But I think the asking price is a bit high.
Seller: What price range are you thinking of?
Buyer: I'm more at the $525 range.
Seller: I'd prefer not to go below $600
Buyer: $600 is fair, but I can't go that high. Also, there aren't many people who are interested in tandem bikes nowadays, so I feel like the bike may sit for awhile if you don't take my offer.
Seller: True. I'll cut you a deal. How about this, if you ride this bike with me around the block, I'll sell it to you for $500. I never got to properly use it because I have no friends.
Buyer: Aww, I am more than happy to go for a bike ride with someone with no friends. $500 it is.
Seller: Deal
Buyer:
Seller:

A:
bike