1. A system for real-time monitoring of changes in a sentiment respective of an input non-sentiment phrase, comprising: a data storage for storing a plurality of phrases including sentiment phrases and non-sentiment phrases and a plurality of term taxonomies, wherein at least one of the stored term taxonomies includes the input non-sentiment phrase; an analysis unit for at least computing sentiment trends; an interface for receiving the input non-sentiment phrase and at least one tendency parameter respective of the input non-sentiment phrase; a monitor for querying the analysis unit to compute a sentiment trend for the at least one term taxonomy, the monitor is further adapted to determine in real-time changes in a direction of the computed sentiment trend with respect to the at least one input tendency parameter; and an output unit for generating at least a notification responsive to determination that the change in the direction of the sentiment trend with respect to the at least one input tendency parameter has occurred.