| http://www.w3.org/ns/prov#value | - urface of said object; anda determinator for determining the state of said object based on the image of the inner surface of said object,wherein said mirror is a ring-shaped mirror formed on an inner surface of a support, and said ring-shaped mirror has a center axis coincident with a center axis of said object,wherein said mirror includes a first portion having a first inclined reflecting surface
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