| http://www.w3.org/ns/prov#value | - t care must be taken. [0021] In addition, and regardless whether the cautioning device is of a cone shaped spiral, or a cylindrically shaped spiral, or to any other shape that can be naturally expanded, and retain that position during usage, various types of bands, support struts, or cross bracing, will aid in the shaped configuration of the device, and particularly at its base, or its upper edge,
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