user: Question: How many rounds ended with a score of 16-52?
Columns: ['Competition', 'Round', 'Opponent', 'Result', 'Score', 'Home/Away', 'Venue', 'Attendance', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Friendly', 'N/A', 'Warrington Wolves', 'Lose', '30-22', 'Away', 'Halliwell Jones Stadium', '6,573', '13 Jan 2008']
SQL:

assistant: SELECT COUNT("Round") FROM "Table" WHERE "Score" = '16-52';