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What Boolean search would you use to look for Web pages about hiking in West Virginia? What if you wanted to find Web pages about hiking in Virginia, but not in West Virginia?
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To look for hiking in West Virginia you could enter "HIKING AND (WEST AND VIRGINIA)"

Hiking in Virginia but not West Virginia could be entered by "(HIKING AND VIRGINIA) AND NOT WEST". Only saying "not west" is necessary and sufficient, to exclude West Virginia Hiking results from the larger set of Virginia hiking results. though larger search terms can give same results, but searching algorithms with minimum terms used are the norms.

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