sentences: sedimentary eye are formed by nitrogen cementing together
docs: sedimentary is rock. geological_formation is layer. sedimentary_clay is soil. cystohepatic_triangle is anatomical_structure. limestone is sedimentary_rock. sandstone is clastic_sedimentary_rock. clastic_sedimentary_rock is sedimentary_rock. limescale_buildup is gradual_accumulation. hial is solid_form_of_rain. sedimentary_rock is stone.