YOU SAID:

The dog was in the fog with the smog and ate a frog

INTO JAPANESE

犬はスモッグで霧の中にいて、カエルを食べました

BACK INTO ENGLISH

The dog was smog in the fog and ate a frog

INTO JAPANESE

犬は霧の中でスモッグをしていて、カエルを食べました

BACK INTO ENGLISH

The dog was smog in the fog and ate a frog