user: Question: WHAT IS THE GREGORIAN CALENDAR FOR Aquarius?
Columns: ['Months in Malayalam Era', 'In Malayalam', 'Gregorian Calendar', 'Tamil calendar', 'Saka era', 'Sign of Zodiac']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Chingam', 'ചിങ്ങം', 'August–September', 'Aavani', 'Sravan–Bhadrapada', 'Leo']
SQL:

assistant: SELECT "Gregorian Calendar" FROM "Table" WHERE "Sign of Zodiac" = 'Aquarius';