user: Question: What award was Won in the Best Sound category for The Exorcist before 1998?
Columns: ['Year', 'Award', 'Category', 'Type', 'Title']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2013.0, 'BAFTA Award', 'Best Sound', 'Nominated', 'Django Unchained']
SQL:

assistant: SELECT "Award" FROM "Table" WHERE "Year" < 1998.0 AND "Type" = 'Won' AND "Category" = 'Best Sound' AND "Title" = 'The Exorcist';