?£["ecm", "rauapuru", "", "iron, sulphur and iron sulphide", "iron"]#["ecm", "raua aatomid", "", "iron, sulphur and iron sulphide", "iron atoms"]#["ecm", "raud ja magnet", "", "iron, sulphur and iron sulphide", "iron and a magnet"]#["ecm", "raud ja väävel", "", "iron, sulphur and iron sulphide", "iron and sulphur atoms"]#["ecm", "väävel ja magnet", "", "iron, sulphur and iron sulphide", "sulphur and a magnet"]#["ecm", "kahe aine segu", "", "iron, sulphur and iron sulphide", "mixture of iron and sulphur 1"]#["ecm", "väävli eraldamine segust", "", "iron, sulphur and iron sulphide", "separating iron and sulphur"]#["ecm", "reaktsioon raua ja väävli vahel", "", "iron, sulphur and iron sulphide", "iron and sulphur reacting"]#["ecm", "Aatomid segus ja liitaines", "", "iron, sulphur and iron sulphide", "atoms in mixture and compound"]#["ecm", "FeS ja magnet", "", "iron, sulphur and iron sulphide", "iron sulphide and a magnet"]#["ecm", "kokkuvõte", "", "iron, sulphur and iron sulphide", "summary B"]#