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The designers discussed whether users
could be encouraged to identify phrases without requiring an explicit
adjacency operator, perhaps via a multiline entry box. In the interests
of simplicity, this possibility was not pursued for ENQUIRE. There are
conceptual problems in the handling of adjacency within a probabilistic
system, which it was felt were more appropriately explored in the context
of other Okapi projects involving ``expert'' users.
PAYNE A
Wed Jul 3 14:11:32 BST 1996