which senator served in military units 517th parachute infantry regiment and 517th parachute infantry regiment ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_militaryUnit dbr_517th_Parachute_Infantry_Regiment sep_dot var_uri dbo_militaryUnit dbr_517th_Parachute_Infantry_Regiment sep_dot var_uri a dbo_Senator brack_close