user: Question: what is the margin of victory for the Waste Management Phoenix Open tournament?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Jun 24, 2007', 'Travelers Championship', '−15 (62-71-67-65=265)', 'Playoff', 'Jay Williamson']
SQL:

assistant: SELECT "Margin of victory" FROM "Table" WHERE "Tournament" = 'Waste Management Phoenix Open';