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: Would you like to buy a Ballistic iPhone 5 Hard Case?
Buyer: Hi does this case come with a glass protection 
Seller: Yes, it has a built in screen protector. Just $5
Buyer: Will my phone break at all with this? And can you do $3
Seller: No, your phone will be safe with this. I think $4.25 is more than fair.
Buyer: I mean they don't make iPhone 5 anymore and I really like this particular phone and don't want it to break 
Seller: I can understand that. It's a very hard case, very durable. It's also shock-absorbent in case you drop it. This thing will definitely protect your phone, very little risk of breaking. $4.25
Buyer: Will it protect in water? 
Seller: Yes, it has a water resistant mesh that will even protect the speakers. It also has button  & port covers on the case. Want it?
Buyer: Yes I do want it but I honestly only have $3 and I think I'm doing you a favor by getting this off your hands
Seller: It is an older case, but there are still a lot of iPhone 5's out there. This case is in new condition as well. $3.00 is just too low. what about $4?
Buyer: Amazon actually has this same case for a $1 i was just instrested in your case because of the color
Seller: It is a lovely shade of blue. The lowest I can possibly go is $4. That's less than a sandwich around these parts.
Buyer: I'm asking you to kindly take $2 off...its just $2 i
Buyer: 
Seller: 

Student:
phone