Given the task definition and input, reply with output. From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Given Relationship: 'be religion in', Sentence: 'Some students thought that Islam was the principal religion of South America , that Roe v. Wade was about slavery , that 50 justices sit on the U.S. Supreme Court , that the atom bomb was dropped on Hiroshima in 1975 ."'
religion