Usually 1 referee and 2 referee assistants. Hope this helps!
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As i do not know the precise answer to this i can still give you a big hint. Ok how about you google this and or look up pictures This will most likely help you :)
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The appeal of landscapes to Japanese artists was that they found peace in looking at such a landscape as a cherry blossom tree or a river flowing over rocks. When Japanese artists painted landscapes they where trying to find peace within themselves and hoping they could help others achieve peace as well.
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