24. A system comprising: a storage device storing an index comprising a collection of entries, each entry comprising a date and a sentence fragment found in close proximity in text of an electronic document, wherein the sentence fragment in each entry differs from an information item in that entry; a server device comprising one or more computer processors, the server device configured to execute program code, the program code including: a search engine to select a first entry in the collection of entries that is relevant to a search query, and an information extraction application program to generate a search result set comprising at least a first information item included in the first entry; and a client device in communication with the server device via a data communication network to receive the search result set outputted from the server device.
24. A system comprising: a storage device storing an index comprising a collection of entries, each entry comprising a date and a sentence fragment found in close proximity in text of an electronic document, wherein the sentence fragment in each entry differs from an information item in that entry; a server device comprising one or more computer processors, the server device configured to execute program code, the program code including: a search engine to select a first entry in the collection of entries that is relevant to a search query, and an information extraction application program to generate a search result set comprising at least a first information item included in the first entry; and a client device in communication with the server device via a data communication network to receive the search result set outputted from the server device. 25. The system of claim 24 , wherein the client device comprises a processor-based platform that includes a display of the search result set, the display comprising the first information item and a first sentence fragment included in the first entry.