| http://www.w3.org/ns/prov#value | - extension 12 being connected to center connection means 30; and an attachment means 20 being connected to second end portion 16 of each extension 12.The center connection means 30 can be in various shapes, such as a circular ring as shown in FIG. 2, a triangular ring as shown in FIG. 3, or other suitable shapes.
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