YOU SAID:
bottle caps are bottle caps because bottle caps are bottle caps
INTO JAPANESE
ボトルキャップはボトルキャップです。ボトルキャップはボトルキャップです
BACK INTO ENGLISH
Bottle cap is a bottle cap. Bottle cap is a bottle cap
INTO JAPANESE
ボトルキャップはボトルキャップです。ボトルキャップはボトルキャップです
BACK INTO ENGLISH
Bottle cap is a bottle cap. Bottle cap is a bottle cap
That didn't even make that much sense in English.