sentences: sedimentary is a window of stone
docs: sedimentary is rock. shale is clastic_sedimentary_rock. sedimentary_clay is soil. limestone is sedimentary_rock. sandstone is clastic_sedimentary_rock. clastic_sedimentary_rock is sedimentary_rock. grounds is sediment. sedimentary_rock is rock. slate is sedimentary_rock. sedimentary_rock is stone.