if a process converts something into something else then that something has the role of raw material in the process
raw_materials is not tangible_thing. lamination is creating_from_raw_materials. baking is creating_from_raw_materials. lamination is not creating_from_raw_materials. construction is not creating_from_raw_materials. creating_from_raw_materials is creation. raw_material is not material. raw_material is material. construction is creating_from_raw_materials. creating_from_raw_materials is not creation.