Premise: Tosca Musk is an American filmmaker. She is a producer and director of feature films, television programs and web content. Her web series, "Tiki Bar TV", and Hallmark television movie, "Holiday Engagement" have garnered some attention, with "Holiday Engagement" setting records for the most-watched television movie on Hallmark. She is the sister of entrepreneurs Elon and Kimbal Musk.
Hypothesis: Tosca is the daughter of Elon Musk.