2. The method of claim 1 , wherein identifying sentiment phrases in the reviews expressing sentiment about the entity comprises: identifying syntactically coherent phrases in the reviews of the entity; and generating sentiment scores for the syntactically coherent phrases, a sentiment score for a phrase representing a polarity and magnitude of sentiment expressed by the phrase.
1. A method of summarizing sentiment expressed by reviews of an entity, comprising: identifying sentiment phrases in the reviews expressing sentiment about the entity; identifying reviewable aspects of the entity, wherein identifying reviewable aspects of the entity includes identifying one or more static aspects of the entity based on a type of the entity and identifying one or more dynamic aspects of the entity based on text of one or more of the reviews; associating the sentiment phrases with the reviewable aspects of the entity to which the sentiment phrases pertain; summarizing the sentiment expressed by the sentiment phrases associated with the reviewable aspects of the entity; receiving a request for the summarized sentiment for the entity; selecting one or more reviewable aspects of the entity, the selected reviewable aspects a subset of the identified reviewable aspects and being selected to identify the more relevant of the identified reviewable aspects; wherein the selecting the one or more reviewable aspects of the entity includes selecting from the static aspects based on first criteria and selecting from the dynamic aspects based on second criteria, the second criteria unique from the first criteria; wherein a given reviewable aspect of the selected reviewable aspects is selected based at least in part on how many unique user opinion sources provided the sentiment phrases associated with the given reviewable aspect; and storing the selected reviewable aspects in response to the received request.