????? ????? ( ????? ??????: [?????ː? ?koː?li] ( ?????? ) ???? ????: [?????ːτ ?koːhli] 5 ???????? 1988 ′ ′ ?? ???? ????????? ??? ???????? ???????? ??? ????????? ???? ???? ???? ???? ????? ?? ?? ?????? ??? ??????? ??? ??? ????? ????? ???? ????? ??? ??? ??????? ??? ?? ??? ????? ???? ??????? ??????? ??? ???????? ????? ????? ???? ????? ???????? ????? ????? ?? ???? ?????? ???? ???? ???? ?????? ?????? ???? ??????? ??????? ????? [1]