Task: Sentiment Analysis
Input (English): Review: I purchased this adapter to replace another PS-AC4 that worked for about 18 months before going belly up. This one lasted two weeks. I called MacAlly and quickly got an RMA number, then I overnighted the defective item to them. That was ten days ago, and I'm still waiting for the replacement to arrive. 
 Polarity: Negative
Output (English): True