YOU SAID:

Aspen has a large behind.

INTO JAPANESE

アスペンは背後に大きな窓がある。

BACK INTO ENGLISH

Aspen has a large window behind it.

INTO JAPANESE

アスペンは後ろに大きな窓がある。

BACK INTO ENGLISH

Aspen has a large window in the back.

INTO JAPANESE

アスペンは奥に大きな窓がある。

BACK INTO ENGLISH

Aspen has a large window in the back.