YOU SAID:
duck is giant but small heart he has
INTO JAPANESE
アヒルは巨大だけど心臓は小さい
BACK INTO ENGLISH
Ducks are huge but hearts are small
INTO JAPANESE
アヒルはでかいけど心は小さい
BACK INTO ENGLISH
Ducks are big but hearts are small
INTO JAPANESE
アヒルは大きいが心は小さい
BACK INTO ENGLISH
big duck but small heart
INTO JAPANESE
大きなアヒルが小さな心
BACK INTO ENGLISH
big duck with small heart
INTO JAPANESE
小さな心を持つ大きなアヒル
BACK INTO ENGLISH
big duck with little heart
INTO JAPANESE
小さな心を持つ大きなアヒル
BACK INTO ENGLISH
big duck with little heart
That didn't even make that much sense in English.