survival to middle light and young limited / leaves sedimentary / igneous stone into metamorphic stone
igneous_rock is stone. metamorphic_rock is rock. metamorphic_rock is not stone. marlite is metamorphic_rock. sedimentary_rock is stone. slate is metamorphic_rock. gneiss is metamorphic_rock. metamorphic_rock is stone. marlite is not metamorphic_rock. slate is sedimentary_rock.