| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWING [0014] The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which: [0015]FIG. 1 is a side view of a system according to the invention in the standby position; [0016]FIG. 2 is a view like FIG. 1 but with the system in the use or aligning position; [
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