| http://www.w3.org/ns/prov#value | - ctions are assembled into said seal core, said seal core comprising compressible material, said body's first opening comprising a first seat adapted for receiving said seal core so that said second end of said seal core's passageway is in communication with said body's passageway, a head including an opening through said head, adapted for joining with said body, said head comprising a second seat,
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