YOU SAID:

police officer ate octopus which was given to him by his mother

INTO JAPANESE

警察官が母親からもらったタコを食べた

BACK INTO ENGLISH

The police officer ate the octopus given to him by his mother.

INTO JAPANESE

警察官は母親からもらったタコを食べた。

BACK INTO ENGLISH

The police officer ate the octopus given to him by his mother.