if something has a uncertain glacier on a sharp then that something stars that algae
glacier is natural_inanimate_thing. glacier is topographical_feature. angel is river. continental_glacier is glacier. polar_glacier is continental_glacier. glacier is river_of_ice. glacier is frozen_fresh_water. glacier is slowly_moving_river_of_ice. siachen_glacier is glacier. mountain_ebony is angiospermous_tree.