In the knot table, it is well-known that 8_19 is (3,4)-torus knot. But, it is not clear to me. How can i change 8_19 to (3,4)-torus knot K(3,4)? Moreover, it is well-known that braids of two equivalent knots are related by Markov moves. How can i change a braid presentation of 8_19 to a braid presentation of K(3,4) by using Markov moves?