Question:  Liezel Huber and Arantxa Sánchez Vicario, are both six time Grand Slam title winners of what sport?
Sentence (from "1996 Wimbledon Championships – Women's Singles"): Steffi Graf was the defending champion, and she successfully defended her title, defeating Arantxa Sánchez Vicario in the final, in what was a rematch of last year's final.
Relevant evidence: No