必要交易品·必要交易品乗馬飼育場の建設horse_breeders_constructionin_game/common/goods_demand/building_construction_costs.txt:1定義in_game/common/goods_demand/building_construction_costs.txt:12masonry = 0.53lumber = 0.24wheat = 0.255horses = 0.157category = building_construction