a woman in a black shirt looking at a bicycle.
A woman in green sleeps on a couch.
The woman is either in green or she is in a black shirt but not both at the same time, and she is either looking at a bicycle or she sleeps on a couch, but not both simultaneously.
The woman cannot be in a black shirt at the same time as being in green.
If a woman is wearing a black shirt, she cannot be said to be dressed in green. A person looking at something is not sleeping.