| http://www.w3.org/ns/prov#value | - An animal confining system comprisingmeans for establishing a boundary includinga point source of radiated energy, and optical means for converting said radiated energy into a curtain of radiated energy, and a collar to be worn by an animal to be confined including means for issuing an instructional command, means for receiving said radiated energy when the animal is within said curtain of radiate
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