Be sure to make each paragraph an AEC parapgraph.
A- assertion
E-Evidence
C-Commentary
You will never go wrong if you write each body paragraph like this
He is looking for freedom for blacks
pop culture.
It's referencing Superman.
You could argue that Superman stems from a body of famous literary work (that is, the source comics), but that's probably not what they're looking for. As Superman is best known from a combination of comics, cinema, TV and merchandise, it's basically a pop culture reference.