A link is called **quasipositive** if it has a special braid diagram, namely a product of conjugates of the positive standard generators of the braid group. If this product only contains words of the form $\sigma_{i,j} = (\sigma_i \cdots \sigma_{j-2})\sigma_{j-1} ( \sigma_i \cdots \sigma_{j-2})^{-1}$ then we call the link **strongly quasipositive**. These notions were introduced by Rudolph.

Is every quasipositive knot strongly quasipositive?

On pp.102 of Rudolph's Quasipositivity and new knot invariants, he gives an example of a quasipositive **link** (of 3 components) which is not strongly quasipositive. Is there an example of a **knot** which is quasipositive but not strongly quasipositive?