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I have a language problem which is deceptively complex:

Would you dive into a pool that is deceptively shallow? The question gives one pause. When deceptively is used to modify an adjective, the meaning is often unclear. Is the pool shallower or deeper than it appears to be? We asked the Usage Panel to decide. Fifty percent thought the pool is shallower than it appears. Thirty-two percent thought the pool deeper than it appears. And 18 percent said it was impossible to decide.