user: Question: What was the women's singles were men's doubles were Steen Fladberg Jens Peter Nierhoff?
Columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1972.0, 'Edgar Michalowski', 'Monika Thiere', 'Siegfried Betz Franz Beinvogl', 'Monika Thiere Angela Michalowski', 'Roland Riese Monika Thiere']
SQL:

assistant: SELECT "Womens singles" FROM "Table" WHERE "Mens doubles" = 'Steen Fladberg Jens Peter Nierhoff';