Oh, you are such an easy pupil.
Yellow coat lady could have taken you anywhere. Frinstance you might have written her (imagined) story, bookended by “I was with my friend Donna at the coffee shop…”, depending on your purpose. This time Donna was the important point. Another time, maybe something else: yellowness… hair… concentration... She was a bit part and played it perfectly.
When I have time I’ll bore you with talk of a writing course I once started, which you don’t need.