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{{x,y,z,w}} {{2,1,0,0},{1,2,0,0},{0,0,1,0},{0,0,0,1}} {{x},{y},{z},{w}}
{{x,y,z,w}} {{2,1,0,0},{1,2,0,0},{0,0,1,0},{0,0,0,1}} {{x},{y},{z},{w}}
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