YOU SAID:

He walked the dog to the car which crashed into the mansion.

INTO JAPANESE

彼は大邸宅に墜落した車に犬を歩いた。

BACK INTO ENGLISH

He walked the dogs in the car that crashed into the mansion.

INTO JAPANESE

彼は大邸宅に墜落した車で犬を歩いた。

BACK INTO ENGLISH

He walked the dogs in the car that crashed into the mansion.