Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective

I ordered 2 of these. When they arrived only one work. The vendor was very cooperative and sent me a new one ... it did not work ... so at that point I had ordered 3 and one worked ... so vendor sent me another and it worked. In summary 2 of the 4 very completely defectiveI bought a 5th one ... IT DID NOT WORK