- $ {{\\\text{X}}^{\\\text{A}}}{{\\\text{X}}^{\\\text{a}}} \\\times {{\\\text{X}}^{\\\text{A}}}{\\\text{Y}}$
- $ {{\\\text{X}}^{\\\text{A}}}{{\\\text{X}}^{\\\text{a}}} \\\times {{\\\text{X}}^{\\\text{a}}}{\\\text{Y}}$
- $ {{\\\text{X}}^{\\\text{A}}}{{\\\text{X}}^{\\\text{A}}} \\\times {{\\\text{X}}^{\\\text{a}}}{\\\text{Y}}$
- $ {{\\\text{X}}^{\\\text{a}}}{{\\\text{X}}^{\\\text{a}}} \\\times {{\\\text{X}}^{\\\text{a}}}{\\\text{Y}}$