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<http://webisa.webdatacommons.org/prov/458468403>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/214729930> .
<http://webisa.webdatacommons.org/214729930>	<http://www.w3.org/ns/prov#value>	"Thewalls 14, 16, 18 and front plate 22 can be formed of any suitable material such as metal or wood, for example." .
<http://webisa.webdatacommons.org/prov/292035027>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/214729930> .