Take the following as truth: But they in turn were ousted in a.d. 645 by Nakatomi Kamatari, founder of the great Fujiwara clan, which was to rule Japanese affairs for hundreds of years and provide prominent advisers to the emperor even up to the 19th century.
Then the following statement: "The Fujiwara clan had political power in Japan up to the 19th century." is true, false, or inconclusive?