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.

Seller: Hey! Good evening!
Buyer: hey
Seller: I see you are interested in my trainer set, also known as the bike thong! Its in great condition and listed at a super fair price. Probably gonna be gone pretty quickly!
Buyer: I would like to buy at $140
Seller: Ehh, I appreciate the offer but I was thinking closer to at least $210
Buyer: Actually I'm looking something within $150
Seller: If you can meet me at $160, I'll throw in a free spare tire and a Trek frame!
Buyer: Oh so nice of you. Can u give me at $155
Seller: I can do $155, but only if you can pay in all quarters. Meet me at the laundry mat and we've got a deal!
Buyer:
Seller:
bike