sentences: magnetism can affect objects that are not touching / without contact
docs: humans_touching_each_other is situation_involving_physical_contact. electromagnetism is magnetism. magnetism is physical_phenomenon. magnetism is attraction. touching is event_involving_physical_contact. magnetism is magnetic_phenomena_and_science. paramagnetism is magnetism. diamagnetism is magnetism. one_physical_phenomenon is magnet. magnetization is physical_property.