10. The method according to claim 1 , further comprises: generating a tree-structured object that selects and orders at least a portion of the set of messages, wherein the at least the portion of the set of messages are selected based on the one or more key events and one or more significant events and are ordered based on a text schema; and refining the tree-structured object based on domain constraints, wherein the alert validation text is generated based on a realization of the tree-structured object.
10. The method according to claim 1 , further comprises: generating a tree-structured object that selects and orders at least a portion of the set of messages, wherein the at least the portion of the set of messages are selected based on the one or more key events and one or more significant events and are ordered based on a text schema; and refining the tree-structured object based on domain constraints, wherein the alert validation text is generated based on a realization of the tree-structured object. 12. The method according to claim 10 , further comprises: traversing the refined tree structured object to express the refined tree structured object in natural language in the form of the situational awareness text by applying a grammar to one or more phrase specifications, wherein the grammar specifies one or more valid syntactic structures in a language and provides a mapping from the one or more phrase specifications into one or more corresponding natural language sentences.