user: Question: How many rounds did the match at GCF: Strength and Honor last?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['NC', '11-18 (1)', 'Bruce Nelson', 'No Contest', 'CFX/Crowbar MMA: Winter Brawl', 1.0, 'Fargo, North Dakota , United States']
SQL:

assistant: SELECT "Round" FROM "Table" WHERE "Event" = 'GCF: Strength and Honor';