A young woman talks on the phone and carries her bags while walking past some hats on display.
A woman walks through a store talking on her phone.
A woman does not necessarily mean she is a young woman.  Walking past some hats on display does not necessarily mean she is walking through a store.
Just because the woman walks past hats on display ,it doesn't mean she is walking through a store.
That there are some hats on display does not necessarily located in a store.