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]: Buyer: Hi. I am interested in your Diamond Back Bike.
Seller: It's a great bike that I enjoyed riding,but I want to sell it since I haven't been able to use it much. Will you pay the asking price?
Buyer: That's a little high for me. Would you take $1200?
Seller: How about $1600?
Buyer: How about $1300 and I will pick the bike up? I would have to buy a bike rack.
Seller: $1400 and I will throw in my bike rack
Buyer: Is the bike rack in good condition?
Seller: Yes, I tried to it on the car but I didn't like it so I purchased a different kind. It works just fine, like new.
Buyer: Ok, sounds good to me - $1400 for the bike and the bike rack.
Seller: 
Buyer: 
Seller: 

[A]: bike


[Q]: Buyer: I am very interested in your FItbit alta.
Seller: Well, I'm glad to hear it.
Buyer: Would you consider an offer of $90.00?
Seller: I'm not sure, if you read the posting you'd see that I didn't expect to accept any lowball offers.
Buyer: Yes I did see that message in the offer.  Would you be willing to meet me halfway in the difference, so a bid of $95.00?
Seller: Well, this is a new product in box, and I priced it to be the same as any other fitbit alta on the market. I suppose if you were willing to come pick it up, I'd be willing to let it go for $95.
Buyer: Yes, I would be glad to come and pick it up, so we have a deal then?
Seller: Sure thing, come over tonight, and you can have what you want.
Buyer: Thank you so very much.
Buyer: 
Seller: 

[A]: electronics


[Q]: Seller: Hello! I see you're interested in the smartphone I have listed. 
Buyer: Yes how old is it?
Seller: It is 1 year old. 
Buyer: Does it have any scratches?
Seller: I had a screen protector on it from the time I bought it, and a case on it, so there may be a few really light ones, but I have tried to take care of it the best I could. 
Buyer: It looks in really good shape. May I ask while you are selling it?
Seller: I am changing carriers to go on my boyfriend's family plan. 
Buyer: Ok. I can give you $38 for it and pick it up.
Seller: Could you do $45?
Buyer: Yes I can do that.
Buyer: 
Seller: Awesome! It's a deal!
Seller: 

[A]:
phone