Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Seller: Hey there! Heard you were interested in purchasing my Marin Coast Trail bike
Buyer: how old are the tires?
Seller: Got them changed two months ago, they're 26 x 1.95 inch Kenda Krossplus tires
Buyer: Was there a chain guard with the bike?
Seller: No there isn't, she's an older gal.
Buyer: Would you do fifty?
Seller: I was planning on selling it for around $150, used to ride a lot and kept the bike well maintained. New job and everything so haven't really had the chance to ride anymore. Since the chain guard is missing I'd be happy to go down to $100
Buyer: It would be just parts for me, $50 is all it is worth to me.
Seller: Eh afraid I can't do that. If you'd come pick it up I'd do $75 to save myself the hassle
Buyer: OK, I can pick it up. $75.00
Seller:
Buyer:

Student:
bike