sedimentary rock is a kind of rock
clastic_sedimentary_rock is sedimentary_rock. limestone is sedimentary_rock. sedimentary_rock is not rock. sedimentary_rock is stone. sedimentary_rock is not stone. sedimentary is not rock. arenaceous_rock is sedimentary_rock. shale is sedimentary_rock. sedimentary_rock is rock. sedimentary is rock.