YOU SAID:

the dog went to the bathroom to figure out why his owner ran out of the room

INTO JAPANESE

犬は飼い主がなぜ部屋から飛び出したのかを理解するためにトイレに行きました

BACK INTO ENGLISH

The dog went to the bathroom to understand why the owner ran out of the room

INTO JAPANESE

犬は飼い主が部屋から飛び出した理由を理解するためにトイレに行きました

BACK INTO ENGLISH

The dog went to the bathroom to understand why the owner ran out of the room