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.

Ex Input:
Seller: Hey, how's it going? I take it you are interested in the bike?
Buyer: Hi, it's going good. And with you? Yes, I am interested in the bike.
Seller: I'm doing good! Let me tell you this bike is a decked out Santa Cruz Chameleon Custom. You can come take it for a ride and I guarantee you will fall in love with it.
Buyer: I would like that, it is a bit of a drive for me. Can you tell me, has this bike ever been in an accident? Any marks or scratches?
Seller: Never crashed it and no marks at all. It's only about 3 months old. I'm looking to sell it for $850
Buyer: Can you tell me, are the extra set of street tires new? How much tread is on them both?
Seller: The tires on the bike are in great condition. The extra set was only used for about a week so they are basically new.
Buyer: How long have you owned the bike?
Seller: 3 months.
Buyer: Are you the first owner? I am very interested in the bike.
Seller: I'm the only owner!
Buyer: Okay, great! Are you willing to come down on the price some? I am serious about buying this bike. However, like I said, it is a bit of a drive for me to come and get it.
Seller: Well, these bikes retail for $2,200 and I'm throwing in an extra set of tires. I think that the asking price of $850 is a steal. 
Buyer: That is a bit steep considering the travel it involves to come and buy it. I am serious with cash in hand.
Seller: If you have the $850 and are ready to buy, I will bring it to your doorstep.
Buyer: Could you do $750?
Seller: I could but I'd have to take out the extra set of street tires.
Buyer: How about $790 with the extra set of street tires included?
Seller: You got yourself a deal.
Seller: 
Buyer: 


Ex Output:
bike


Ex Input:
Buyer: I'm interested in your powerbank--I'd be willing to pay $9 for it
Seller: You know this power bank is brand-new right? So it's worth $20 and I already lowered the price to $12 so I could sell them quickly.
Buyer: Of course--there are comparable products on the market, inlcuding from amazon, for a similar price
Seller: I made sure to price them below the prices on Amazon. I will go down to $11 final offer.
Buyer: I'm willing to consider $11, are there other perks to this device I should be aware of?  I know that it has several protections built in--but I want to make sure
Seller: Yes the battery actually last a long time and it has five security protection.
Seller: 
Buyer: 


Ex Output:
electronics


Ex Input:
Seller: Hi, are you in the market for an iphone case?
Buyer: I am, is it still available?
Seller: yes it is and its brand new. what kind of iphone do you have?
Buyer: I have a 6, do these cases hold up pretty good?
Seller: yes they do..the one I use is going on 3 years now. have you ever used one?
Buyer: I haven't used a case like this before but been wanting to try one out. I see it's listed for $8, any way you would take $7?
Seller: I really would like to sell it for $8 because its brand new
Buyer: $7.50?
Seller: okay that works. do you want to pick it up?
Buyer: Can you ship? I can cover the cost for shipping.
Seller: yes I can - but it'd cost you more in shipping than for the case
Buyer: I will just pick up then. I will message you later to get that info from you. Thank you :)
Buyer: 
Seller: 


Ex Output:

phone