The space above a theatre's stage is called the fly system. What are the sides of the stage called?

Masaccio's The Holy Trinity fresco is considered to be the first painting based on the systematic use of

contrapposto. chiaroscuro. linear perspective. foreshortening.

He boasted about his sexual prowess on his records

a. Ice-T b. Dr. Dre c. Tupac Shakur d. The Notorious B.I.G.