YOU SAID:
the grinch is a malnurished green bear
INTO JAPANESE
グリンチが malnurished 緑熊です。
BACK INTO ENGLISH
The Grinch is a malnurished green bear.
INTO JAPANESE
グリンチは、malnurished 緑熊です。
BACK INTO ENGLISH
The Grinch is a malnurished green bear.
That didn't even make that much sense in English.