user: Question: What is Week, when Semi Finalists is Sandrine Testud Yone Kamio?
Columns: ['Week of', 'Tier', 'Winner', 'Runner-up', 'Semi finalists']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1 May', 'Tier II', 'Conchita Martínez 6–1, 6–0', 'Martina Hingis', 'Anke Huber Magdalena Maleeva']
SQL:

assistant: SELECT "Week of" FROM "Table" WHERE "Semi finalists" = 'Sandrine Testud Yone Kamio';