| http://www.w3.org/ns/prov#value | - The three components including the handle, detector and color comparison elements may all be presented at the same side of the card for ease and readiness of use, and they may all extend in generally parallel relation to facilitate such ready usage, as by holding the card with one hand, and swiping the swab along the surface of the detector, with the user's other hand holding the handle, whereby t
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