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.

Example Input: Buyer: Hi there I am interested in your item for sale, can you tell me some details about it please?
Seller: hi there - i have a brand new iphone 6 that is completely unlocked for sale
Buyer: That's great. Does it come with a charger?
Seller: absolutely - this thing is new in box, still has the screen wrapper on
Buyer: That's great. Would you consider an offer of 200 for it?
Seller: i'm afraid not, this is really a brand new phone just purchased, with warranty, new in the box. 200 dollars is well below fair value for this phone. I could go as low as 350 but that's really the end of my rope
Buyer: I can go to 300
Seller: if you look up the pricing on a new iphone six 350 is a very fair price. I can throw in additional warranty on the phone for an extra year
Buyer: Ok the extra warranty sounds like a good deal
Buyer: 
Seller: 

Example Output: phone

Example Input: Buyer: Hey. How long have you had this couch for?
Seller: HI, we've had it a couple years
Buyer: Okay. Did anyone smoke where the couch was?
Seller: Oh, no, none of us are smokers and it was bought new, so that's not an issue.
Buyer: Okay great.  Is there any damage to the couch? Do you have a picture?
Seller: Sorry, ,I don't have a photo. But it has no damage, you would see when you picked it up.
Buyer: Okay.  How much are you trying to sell it for?
Seller: I'm asking $40 and have come down a bit to that
Buyer: 40 is good to me.  I can pick it up this weekend.  Cool?
Buyer: 
Seller: Hey, great! It's a deal. This weekend works fine.
Buyer: Awesome
Seller: Thanks, see you then.
Buyer: You too. Bye
Seller: bye
Seller: 

Example Output: furniture

Example Input: Seller: Hello
Buyer: hello 
Seller: Were you interested in purchasing this item? Do you have any questions about it?
Buyer: I am interested in the bike. 
Seller: Do you have any questions about it I can answer for you?
Buyer: What color is this bike nad where is the location of the bike? 
Seller: The bike is a really nice metallic blue and has white features like white handle grips , white fork and a white saddle.
Buyer: would you be willing to take $650.00 cash money, today? I will pick up immediatly! 
Seller: That is a good offer, It would be great if you could pick it up , but 650 is a bit too far below asking price. I could go as low as 700 though. 
Buyer: I will take it for $700.00 
Seller: 
Buyer: 
Seller: 

Example Output:
bike