Daniela Ryf ที่เข้าแข่งขันประเภทหญิงว่ายอะไร (1.5 กม.)?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Daniela Ryf who competes in the women's even had what swim (1.5km)?It is not neccessary to use all the tables.
 table_name_6:  (swim__15km_ [ VARCHAR ] event [ VARCHAR ] athlete [ VARCHAR) ]
SELECT swim__15km_ FROM table_name_6 WHERE event = "women's" AND athlete = "daniela ryf"