9. A system for extracting information from a set of documents, comprising: a memory; and a processor configured to: receive a set of documents; receive a first concept, the first concept representing first information for extraction from the set of documents, wherein the first concept comprises a plurality of trigger phases related to the first concept; update the first concept into a first subset and a second subset, the first subset comprising one or more of the plurality of trigger phrases of the first concept, the second subset comprising remaining trigger phrases of the plurality of trigger phrases of the first concept; create a second concept based on the first concept, the second concept having a definitional dependency from the first concept, the definitional dependency providing a contextual relationship to the second concept such that the second concept represents second information within a context of the first information; update the second concept into a third concept and a fourth concept, the third concept depending on the first subset of the first concept, the fourth concept depending on the second subset of the first concept; select the second concept; and based on the selection of the second concept, extract from the set of documents, the second information within the context of the first information.
9. A system for extracting information from a set of documents, comprising: a memory; and a processor configured to: receive a set of documents; receive a first concept, the first concept representing first information for extraction from the set of documents, wherein the first concept comprises a plurality of trigger phases related to the first concept; update the first concept into a first subset and a second subset, the first subset comprising one or more of the plurality of trigger phrases of the first concept, the second subset comprising remaining trigger phrases of the plurality of trigger phrases of the first concept; create a second concept based on the first concept, the second concept having a definitional dependency from the first concept, the definitional dependency providing a contextual relationship to the second concept such that the second concept represents second information within a context of the first information; update the second concept into a third concept and a fourth concept, the third concept depending on the first subset of the first concept, the fourth concept depending on the second subset of the first concept; select the second concept; and based on the selection of the second concept, extract from the set of documents, the second information within the context of the first information. 11. The system of claim 9 , wherein the second information within a context of the first information comprises the second information in a subset of the set of documents containing the first information.