user: Question: What's the Student Body with an Affiliation of Roman Catholic and has an Enrollment of 502?
Columns: ['School', 'Grades', 'Affiliation', 'Student Body', 'Enrollment']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Lutheran West High School', '9-12', 'Christian', 'Co-ed', 443.0]
SQL:

assistant: SELECT "Student Body" FROM "Table" WHERE "Affiliation" = 'Roman Catholic' AND "Enrollment" = 502.0;