depend upon
    v 1: be contingent on; "The outcomes rides on the results of the
         election"; "Your grade will depends on your homework" [syn:
         depend on, devolve on, depend upon, ride, turn
         on, hinge on, hinge upon]
    2: put trust in with confidence; "she is someone you can really
       rely on when times get rough"; "you can rely on his
       discretion" [syn: depend on, depend upon, rely on,
       rely upon]