YOU SAID:
Pumpernickle bread is the best bread and the best bread can only be pumpernickle bread
INTO JAPANESE
Pumpernickleのパンは最高のパンであり、最高のパンはPumpernickleのパンだけであることができます
BACK INTO ENGLISH
Pumpernickle bread is the best bread and the best bread can be only Pumpernickle bread
INTO JAPANESE
Pumpernickleのパンは最高のパンであり、最高のパンはPumpernickleのパンだけになります
BACK INTO ENGLISH
Pumpernickle's bread is the best bread and the best bread is only Pumpernickle's bread
INTO JAPANESE
Pumpernickleのパンは最高のパンで、最高のパンはPumpernickleのパンだけです
BACK INTO ENGLISH
Pumpernickle's bread is the best bread and the best bread is only Pumpernickle's bread
That didn't even make that much sense in English.