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The Shiitake Growers Cooperative, in Japan's Oita Prefecture, awards the winner of each bimonthly Japan Sumo Association tournament (Nihon Sumo Kyokai honbasho) a ceremonial large glass filled with shiitake mushrooms, as well as a cash prize.
The shiitake is also eaten by caterpillars of the fungus moth Triaxomera parasitella.
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