YOU SAID:
the crab cannot walk without the legs of a crab
INTO JAPANESE
カニはカニの足なしでは歩くことができません
BACK INTO ENGLISH
Crabs cannot walk without crab legs
INTO JAPANESE
カニはカニの足なしでは歩くことができません
BACK INTO ENGLISH
Crabs cannot walk without crab legs
That didn't even make that much sense in English.