Input text: a 1st 20 foot deep and 8 foot tall and 20 foot wide [earth] cube. a professor is on the cube. a 2nd 20 foot deep and 8 foot tall and 20 foot wide cube is on the professor. it is 5 foot wide [sky]. a [abstract] backdrop. it is noon. a tiny azure light is 5 feet in front of the professor. a yellow light is 20 feet behind the professor.