Answer:
They should end up like this. 山+谷 敵+友 密+公 泳+沈 悠+近
山 SAN, yama - mountain
谷 KOKU, tani, ya - valley
敵 TEKI, kataki - enemy, opponent
友 YUU, tomo - friend
密 MITSU - close, dense, minute, secret
公 KOU, ooyake - public
泳 EI, oyo(gu) - swim
沈 CHIN, shizu(mu), shizu(meru) - sink
悠 YUU - distant
近 KIN, chika(i) - close, near