theoretical knowledge
declarative knowledge
/suto3/google.icontheoretical knowledge
/suto3/Google画像検索.icontheoretical knowledge
/suto3/Google定義検索.icon theoretical knowledge
/suto3/wikipedia.icontheoretical knowledge
/suto3/weblio.icon theoretical knowledge
/suto3/kotobank.icon theoretical knowledge
/suto3/jisho.icon theoretical knowledge