| http://www.w3.org/ns/prov#value | - In some cases, materials such as odorants or neurotransmitters may stimulate the olfactory region to produce a sensory effect, for example for an esthetic, recreational, or medical purpose (e.g., aromatherapy; blockade, modification or enhancement of the flavors of foods, drinks, or orally delivered medications; one-or-more scents or olfactory modulators delivered according to a pattern or script
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