which ship builder built the <brazilian tanker almirante gastão motta ?
SELECT DISTINCT var_uri where brack_open dbr_Brazilian_tanker_Almirante_Gastão_Motta_ attr_open G23 attr_close dbp_shipBuilder var_uri sep_dot dbr_Brazilian_tanker_Almirante_Gastão_Motta_ attr_open G23 attr_close dbp_shipBuilder var_uri brack_close