Question: What is the main occupation of Hiroshi Sakaguchi, founder of Ki Arts, a traditional Japanese company in Northern California and who features in the 2010 documentary film directed by Tao Ruspoli, based on Martin Heidegger's philosophy?
Sentence (from "Being in the World"): Being in the World is a 2010 documentary film directed by Tao Ruspoli.
Relevant evidence: Yes