and fourth generation ~ 02_EXO_20_05 ~ and fourth generation ~ 04_NUM_14_18 ~
 and fourth generation of ~ 02_EXO_20_05 ~ and fourth generation of ~ 05_DEU_05_09 ~
 third and fourth generation ~ 02_EXO_20_05 ~ third and fourth generation ~ 04_NUM_14_18 ~