They put it into worm recomposting systems, which produced a lot of worms, which they fed to Siberian sturgeon, which produced caviar, which they sold back to the restaurants.
それをミミズ再堆肥化システムに入れ たくさんに増えたミミズをシベリアチョウザメに与え サメからキャビアを得て レストランに売ります