| http://www.w3.org/ns/prov#value | - Alternatively, the wick or scent-containing medium 5 may be made from a range of materials such as natural or synthetic fabrics, plastics or polymers, scent-impregnated plastics or polymers, absorbent permeable, porous or foamed elastomers, foam plastics, felt materials made of natural or synthetic fibers, or other absorbent or adsorbent materials, and in a variety of shapes and sizes to accommoda
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