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[Question] How many ways can you scramble all the letters in GOOOSE, such that G is always together with O, and S is never together with E? [Requirement] 1. Sketch a tree of counting plan. [3K] 2. Check your tree diagram to see if you have counted some possibilities more than once. 3. Provide an algebraic solution based on your counting plan. That is, multiply all numbers on a single branch to get the branch number, and then add up all the branch numbers. [4A] 4. As verication, list all possible scrambles in an organized way based on your counting plan. [3K]