| http://www.w3.org/ns/prov#value | - In these drawings, reference numeral 1 designates a support column which is prepared in the form of a bolt, a round rod material, a rod-shaped material having a square cross-sectional contour, a plate-shaped material, a pillar or the like, made of materials such as wood, metal, plastic or the like, and mounted at a location where it is unacceptable that a bird perches and drops his excrement, by u
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