1. sakana   clam   cod   fish   lobster   Hint Half-n-half Clue   2. same   tuna   sardine   mackerel   shark   Half-n-half Clue   3. iwashi, sadein   crab   shellfish   sardine   shrimp   Half-n-half Clue   4. kani   crab   shellfish   sardine   fish   Half-n-half Clue   5. shoebi, shurinbu   tuna   fish   shrimp   salmon   Half-n-half Clue   6. sake   sardine   crab   salmon   shellfish   Half-n-half Clue   7. gai   shrimp   fish   salmon   shellfish   Half-n-half Clue