user: Question: What event did Sjerstin Vermeulen receive a 66.452 result?
Columns: ['Athlete', 'Class', 'Horse', 'Event', 'Result', 'Rank']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Ineke de Groot', 'Grade IV', 'Indo', 'Championship Test', '63.161', '7']
SQL:

assistant: SELECT "Event" FROM "Table" WHERE "Athlete" = 'Sjerstin Vermeulen' AND "Result" = '66.452';