{{1/sqrt(2), 1/2, -1/2},{-1/sqrt(2), 1/2, -1/2},{0, 1/sqrt(2), 1/sqrt(2)}}.{{1/sqrt(2), -1/sqrt(2), 0},{1/2, 1/2, 1/sqrt(2)},{-1/2, -1/2, 1/sqrt(2)}}

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