list the origin of the weapons which were used in the revolutions and interventions in hungary .
SELECT DISTINCT var_uri where brack_open var_x dbo_usedInWar dbr_Revolutions_and_interventions_in_Hungary_ attr_open 1918–20 attr_close sep_dot var_x dbp_origin var_uri sep_dot var_x a dbo_Weapon brack_close