user: Question: Name the highest Parallel Bars of the United States with a Vault smaller than 63.85?
Columns: ['Position', 'Country', 'Floor', 'Pommel Horse', 'Rings', 'Vault', 'Parallel Bars', 'Horizontal Bar', 'Team Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['1st', 'China', 60.925, 61.2, 62.85, 65.325, 63.3, 61.075, 374.675]
SQL:

assistant: SELECT MAX("Parallel Bars") FROM "Table" WHERE "Country" = 'United States' AND "Vault" < 63.85;