YOU SAID:

The same one they've had for the last 3 years

INTO JAPANESE

彼らが過去3年間持っていたのと同じもの

BACK INTO ENGLISH

The same thing they had in the past three years

INTO JAPANESE

過去3年間に彼らが持っていたのと同じこと

BACK INTO ENGLISH

The same thing they had in the past three years