Complex sentence: Kanayatn grouped into categories clump Land Dayak-Kalimantan by HJ Mallinckrodt (1928); but according to C.H. Duman (1929), it is part of the Kanayatn Dayak Ot Danum Clump-Maanyan-Ngaju.
Split into simpler sentences: Kanayatn grouped into categories clump Land Dayak-Kalimantan by HJ Mallinckrodt (1928). But according to C.H. Duman (1929), it is part of the Kanayatn Dayak Ot Danum Clump-Maanyan-Ngaju.