A young woman cooks a meal in a wok while conversing with another woman, as an illuminated shrine to Mr. T looks on.
A young chef teaches her sister how to prepare a recipe.
Not every woman who cooks is a chef. Just because two women are conversing while one is cooking does not mean that she is teaching . Not all woman conversing are sisters.
Just because a young woman cooks a meal it does not mean she is a chef.  Just because a young woman is talking with another woman it does not mean the other woman is her sister. or that she is teaching her how to prepare a recipe.
woman cooking a meal n a wok does not imply that she is chef and another woman not necessarily can be her sister.