user: Question: Who won the womens singles event the year that Jonas Lyduch won?
Columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1974.0, 'Hermann Fröhlich', 'Monika Cassens', 'Gregor Berden Stane Koprivsek', 'Monika Cassens Christine Zierath', 'Joachim Schimpke Monika Cassens']
SQL:

assistant: SELECT "Womens singles" FROM "Table" WHERE "Mens singles" = 'Jonas Lyduch';