| http://www.w3.org/ns/prov#value | - This facing 22 need not extend all the way around the core 24, but can also extend only partially around the core. [0106] Further embodiments are illustrated in FIGS. 7E and 7F, wherein a core 26 is provided surrounded by two facing layers 24 and 26, one of which may be fiber cement as described above and the other of which can be the same or other material.
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