sentences: sedimentary rock can be changed into metamorphic rock
docs: sedimentary is rock. gneiss is metamorphic_rock. slate is metamorphic_rock. sublimation is change. amphibolite is metamorphic_rock. sedimentary_rock is rock. metamorphic_rock is rock. metamorphic_rock is stone. sedimentary_rock is stone. shale is sedimentary_rock.