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: Hey! Fantastic lights here, they cost $100. Do you want them?
Buyer: Sure but how old are they?
Seller: Hello, these lights are 100$
Buyer: How old are the lights?
Seller: They are like new, keep in mind brand new they sell for 500$
Buyer: But like new and brand new are two different things.  How old are they exactly
Seller: I got them a little over a year ago
Buyer: seeming that the bulbs will need to be changed as is the nature of tube bulbs to go bad after 6 months of use and the fact they are used, the most I would be willing to pay is $50 and thats with me coming to pick them up in person.
Seller: Deal! I'm looking to get rid of them ASAP
Seller: 
Buyer: 

[A]: electronics


[Q]: Buyer: how old is it
Seller: Hi! I would love to sell this item ASAP. How much are you willing to pay?
Buyer: i think i can use it is there any thing wrong with it
Seller: It is in perfect working condition and has no wear or tear! I bought it this month and only used it twice! At $275 you'd be getting a steal!
Buyer: i needs  one of these but i can afford 200
Seller: Since you want $200 and I want $275, how about we meet in the middle at $237.5? If you round it up to $240 and have cash, I'll deliver it to you!
Buyer: i can get you 230 that's as close as i can get 
Seller: $230 and you will pick it up?
Buyer: yeah at McDonalds at 3pm
Seller: Sounds good
Seller: 
Buyer: 

[A]: bike


[Q]: Buyer: Hey there that's a great mattress, what are you looking to sell it for today?
Seller: I'll be honest, I just wanna get rid of the mattress along with the frame and night stand. I'd be willing to sell it all for 120$ or I could break the items up for 40$ each. I can include delivery within a 20 mile radius.
Buyer: Okay that seems like a pretty generous offer. Are you looking to get rid of it because of space reasons or is there something wrong with it?
Seller: Its in good condition but does have a few marks and scratches from daily use. I'm looking to sell it because I am moving and have purchased a newer replacement so space is limited to store my old furniture. 
Buyer: Ah okay seems reasonable. Looks like a deal I cant refuse, free shipping and a night stand. You got yourself a deal!
Buyer: 
Seller: 

[A]:
furniture