| http://www.w3.org/ns/prov#value | - The effectiveness of the sunscreen experienced by the tourist varies with such factors as skin type, amount applied and frequency of re-application (as well as how much sunscreen is absorbed by your skin), how much you sweat or rub off, and the kinds of activities one engages in (for instance, going snorkeling not only tends to wash the sunscreen off, but exposes you to increased radiation from wa
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