?? ???????????????????????:??
????:1????:????????
2???????
3???sn??
4???????????
5??????????
???????9???20???????????? ????????,????19??,?“????????・???????????????6?????”?,?????(JR??)??,???96??
??????,???,???????????????????,???????????????,????????????JR????????,?????????
???????,??????????,???8?,????????315???,????,?????????????????????,???????????
????????,???72???????????????????????5???,?4.5??????????????? ???????????????:???