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Documents on the Internet are composed of several kinds of multimedia information when accessed for personal, entertainment, business, and scientific purposes. There are many specific content domains of interest to different communities of users. Extracting semantic relationships between entities from text documents is challenging task in information extraction. By semantics for natural language in this connection, this paper understands not just the relating of a semantic representation language to natural language but the evaluation of natural language expressions with respect to databases. Evaluating a declarative sentence (on a given reading) with respect to a database involves determining whether the sentence is true with respect to the data base, whether the sentence appropriately describes the database.
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