If a, b, c are positive real numbers, what is the value of $\sqrt{a^{-1}b}×\sqrt{b^{-1}c}×\sqrt{c^{-1}a}$

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If a, b, c are positive real numbers, what is the value of $\sqrt{a^{-1}b}×\sqrt{b^{-1}c}×\sqrt{c^{-1}a}$ Let the values of a , b and c  = 1 and put in the required equation, $\sqrt{1^{-1}1}×\sqrt{1^{-1}1}×\sqrt{1^{-1}1}$ = 1