food can be a source of an odor
school_lunches is sources_of_extremely_foul_odors. scent is smell. cheese_often has pungent_smell aroma is smell. odor is sensory_information. school_lunches is not sources_of_extremely_foul_odors. odor_level is not sensory_information. water has no_flavor_or_odor odor is not sensory_information. aroma is not smell.