Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: manufacturing engineer

Plane and simple....the regulator connection to the grill dont fit.... ( regu. connection is too small. This regulator is none adjustable.I entered the make and model of my table top coleman grill, amazon came up with this regulator. Its totally the wrong one.. Really... how does that happen, how do i return it for the correct regulator???Colin hungry in Wisconsin....