Instructions: 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.
Input: Buyer: Hi, this looks like a great bike. Would you sell for $160?
Seller: That's because it is a great bike. But I'm afraid I can't go any lower than $180. I just had the tires and chain replaced and those set me back at least $50.
Buyer: I can do $180 if you throw in a helmet and lock. Deal?
Seller: If that's the case, I'll just throw it at you for $170. I have neither of those things.
Buyer: Well do you have any bike equipment. I have a basic budget, so I was looking to see what things I might not have to buy if I could get them from you.
Seller: I'm afraid not.
Seller:
Buyer:

Output:
bike