YOU SAID:

The cat is the one with the hat.

INTO JAPANESE

帽子をかぶっているのは猫です。

BACK INTO ENGLISH

A cat is wearing a hat.

INTO JAPANESE

猫が帽子をかぶっています。

BACK INTO ENGLISH

The cat is wearing a hat.

INTO JAPANESE

猫は帽子をかぶっています。

BACK INTO ENGLISH

The cat is wearing a hat.