... specific and tangible features. Also, there are somewhat a fixed set of features of a specific type of product, for exam-ple, ease of use, durability, battery life, photo quality, and shutter lag ... examples of sen-tences that our system identified as reasons of complaints. (1) Unfortunately, I find that I am no longer comfortable in your establishment because of the unprofessional, ... whole point of the review. For opinion-bearing word features, we used pre-selected opinion-bearing words produced by a combination of two methods. The first method derived a list of opinion-bearing...