sentences: nearly all fossils are found in sedimentary rock
docs: sedimentary is rock. carbonate_rock is sedimentary_rock. fossil is remains. sedimentary_clay is soil. phosphorite is sedimentary_rock. limestone is sedimentary_rock. sandstone is clastic_sedimentary_rock. clastic_sedimentary_rock is sedimentary_rock. sedimentary_rock is rock. sedimentary_rock is stone.