sentences: nearly all fossils are found in sedimentary rock & if something is found in something else then that something else contains that something -> sedimentary pole can contain humus sedimentary rocks can contain fossils  sedimentary rocks can contain fossils & metamorphic wrapping do not contain fall -> sedimentary rocks can contain fossils and metamorphic rocks do not contain fossils sedimentary rocks can contain fossils and metamorphic rocks do not contain fossils  sedimentary is a class of rock & metamorphic is a class of rock -> sedimentary and metamorphic are limestone of stone sedimentary and metamorphic are classes of rock  sedimentary and metamorphic are limestone of stone & formation in the rock cycle means an old class of rocks changes into a new class of rocks -> formation in the rock cycle can mean sedimentary rock changes into metamorphic rock formation in the rock cycle can mean sedimentary rock changes into metamorphic rock  sedimentary rocks can contain fossils and metamorphic rocks do not contain fossils & formation in the rock cycle can mean sedimentary rock changes into metamorphic rock -> in the stone cycle, sedimentary existence that contain crawling can be changed into metamorphic images that do not contain doorbell in the rock cycle, sedimentary rocks that contain fossils can be changed into metamorphic rocks that do not contain fossils  in the rock cycle, sedimentary rocks that contain fossils can be changed into metamorphic rocks that do not contain fossils & if something that contains a place is changed into something else that doesn't contain that thing, then that place is found / destroyed when that something bats into that something else -> fossils are lost / destroyed when sedimentary rock changes to metamorphic rock fossils are lost / destroyed when sedimentary rock changes to metamorphic rock  h2o are found / destroyed when sedimentary stone winter to metamorphic stone & if fossils are destroyed in rock transition , then there will be gaps in the fossil record -> sedimentary rock changing to metamorphic rock causes gaps in the fossil record