Simplify: (x1/2)2/3(x^{1/2})^{2/3}(x1/2)2/3
x1/3x^{1/3}x1/3
x1/6x^{1/6}x1/6
x5/6x^{5/6}x5/6
x3/2x^{3/2}x3/2