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Design of any new intelligent search engine should be at least based on two main motivations. 1) The Web environment is, for the most part, unstructured and imprecise. To deal with information in the Web environment what is needed is a logic that supports modes of reasoning which are approximate rather than exact. While searches may retrieve thousands of hits, finding decision-relevant and query-relevant information in an imprecise environment is a challenging problem, which has to be addressed and 2) another, and less obvious, is deduction in an unstructured and imprecise environment given the huge stream of complex information.