Instruct: Classify a given review as either positive or negative.
Query: These work very nicely

I wasn't sure what to expect, but needed quick relief of Plantar Fasciitis. These were a life-saver, although not perfectly. They do provide the right lift and support to relieve the pain, although there is no actual cure for the problem, other than time and stretching. But they do provide me some relief, so I am happy about that.