#fertilizer
apple:1
you:1
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eat_apple:(apple:1;you:1):(you:1;seed:1;fertilizer:1;happiness:1):1
plant_apple:(you:1;seed:1;fertilizer:1):(you:1;apple_tree:1):100
pick_apple:(you:1;apple_tree:1):(you:1;apple:1):4
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optimize:(happiness)
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