#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

kyoka = ["kokugo","suugaku","eigo","rika","syakai"]
sybj = {"kokugo"=> [["「炎」の訓読みは?","ほのお","えん"],
                    ["「飯」の訓読みは?","めし","はん"],
                    ["「骨」の訓読みは?","ほね","こつ"],
                    ["「今」の訓読みは?"."いま","こん"],
                    ["「位」の訓読みは?","くらい","い"],
                    ["「事」の訓読みは?","こと","じ",]],
        "suugaku" => [["58+37は?","85","95"],
                      ["137-56は?","81","121"],
                      ["15×3は?","35","45"],
                      ["48➗3は?","16","12"]],
        "eigo" => [["familyの意味は?","家族","学校"],
                   ["houseの意味は?","町","家"],
                   ["manの意味は?","月","人"],
                   ["eggの意味は?","卵","料理"],
                   ["riceの意味は?","料理","米"]],
        "rika" => [["でんぷんがあるかどうか調べるときに使う液体を何というか?","ヨウ素液","石灰水"],
                   ["酸素にはどんな働きがあるか?","燃える働き","ものを燃やす働き"],
                   ["人間は何を吸って何を吐いているか?","