Instructions: Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
Input: Larry Hagman, the star of the TV drama that first ran from 1978 to 1991, Dallas, is the son of which actress and singer who originated many roles over her career including Nellie Forbush in South Pacific and Maria in The Sound of Music?
Output:
mary martin