Question: Which competition was won by both Barbora Krejčíková and Kateřina Siniaková?
Answers:
answer_text: 2019 Upper Austria Ladies Linz – doubles
answer_text: 2018 Wimbledon Championships – Women's Doubles
answer_text: 2021 Gippsland Trophy – Doubles
answer_text: 2021 Mutua Madrid Open – Women's Doubles
answer_text: 2018 French Open – Women's Doubles
answer_text: tennis at the 2020 Summer Olympics – women's doubles
answer_text: 2020 WTA Shenzhen Open – doubles