  A useful inequality is obtained if charmless strange B decays are assumed to
be dominated by a $\Delta I = 0$ transition like that from the gluonic penguin
diagram and the contributions of all other diagrams including the tree,
electroweak penguin and annihilation diagrams are small but not negligible. The
interference contributions which are linear in these other amplitudes are
included but the direct contributions which are quadratic are neglected.
