A young middle eastern mother in high heels, holding her young child as he lays his head on her shoulder asleep, is gazing out the window.
A woman holding her sleeping son looks out a window.
A mother is a woman while gazing out the window requires that she looks out a window.
A mother is a woman and being asleep and gazing is the same as sleeping and looking.
She is holding her son because she is holding her child.