\[\omega_{y}=\frac{\left(\alpha q,\beta\delta q,\gamma q,\gamma\delta q;q\right)%
_{y}}{\left(q,\frac{\gamma\delta}{\alpha}q,\frac{\gamma}{\beta}q,\delta q;q%
\right)_{y}}\frac{1-\gamma\delta q^{2y+1}}{\left(\alpha\beta q\right)^{y}},\]