| http://www.w3.org/ns/prov#value | - A seamless, hollow spherical marker buoy of thermoset resin, rotationally molded without seams, vent holes, or other openings, and having a 3-plane, rigid, corner cube radar reflector mounted inside; said reflector being formed of 3 panels offlat sheet, micro-waverqflestiye m r rsaid.
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