sentences: if solids are combined physically , then the physical properties of the solids will stay the same
docs: rdf_triple_store_physical is tangible_thing. elasticity is physical_property. fat_content is tangible_physical_quantity. physical_chemistry is chemistry. weight is physical_property. surface_attribute is physical_property. mass is physical_property. reluctivity is physical_property. physical_property is property. physical_surface is tangible_thing.