a person is over a sidewalk. she faces back. the sidewalk is 50 feet deep. a gray [old] building is to the right of the sidewalk. it faces right. the ground is pavement. it is night. a bordeaux wine mauve light is 10 feet above the person. a pirate is 20 feet in front of the person. he faces back. a ghost white light is 15 foot in front of and -.5 feet above the pirate. a purple light is behind the ghost white light.