  The topological basis associated with Birman-Wenzl-Murakami algebra (BWMA) is
constructed and the three dimensional forms of braiding matrices S have been
found for both $S^+=S$ and $S^+=S^{-1}$. A familiar spin-1 model related to
braiding matrix associated with BWMA is discussed. The extreme points
$(\theta=\pm\pi/2$ and $\pm\pi)$ of L1-norm and von Neumann entropy are shown
to be connected to each other. Through the general discussion and examples we
then point out that the L1-norm describes quantum entanglement.
