--- "John D. Burger" <john(at)mitre(dot)org> wrote:
> I read this as: Find all parents such that none of their kids are
> girls and none of their kids are boys. That is, ALL of their genders
> are <> 'girl', AND ALL of their genders are <> 'boy'. Under the
> obvious assumptions about gender, the result is of course empty -
> except it's not clear to me what should happen for childless people ...
Thanks everyone that makes sense!
Regards,
Richard Broersma Jr.