Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I didn't realize I was ordering a minature engine

I thought there was only one size for the train. I had a large train track and this engine looked the same size and I thought it was the same size as the engine I had to discard. However, when I received the engine and looked back at the ad for it I realized it did list the measurement. Now I would like to order the bigger engine and just don't know how to do that.