答え：[人][工][芝]・[野][球][場]
┌─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┬─┐
│水│天│宮│■│一│球│入│魂│■│大│義│名│分│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│産│■│大│黒│天│■│場│■│内│意│■│球│■│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│■│名│工│■│四│人│■│原│野│■│入│会│地│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│内│文│■│南│海│■│熱│■│手│勝│手│■│球│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│務│■│高│天│■│地│中│海│■│地│■│大│儀│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│大│海│原│■│水│域│■│月│一│■│天│地│■│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│臣│■│野│草│■│手│中│■│大│自│然│■│大│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│■│高│菜│■│本│当│■│内│決│■│芝│海│老│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│入│水│■│中│人│■│高│■│心│中│■│底│■│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│■│工│手│間│■│一│等│地│■│国│内│■│地│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│海│事│■│原│始│人│■│下│手│人│■│出│場│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│産│■│地│料│■│芝│野│■│水│■│名│■│産│
├─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┼─┤
│物│名│歌│■│入│居│■│工│場│制│手│工│業│
└─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┘
すらすら解けました！ありがとうございます