| http://www.w3.org/ns/prov#value | - [0015] The invention will now be described in greater detail, by way of example, with reference to the drawings, in which: [0016]FIG. 1 is a schematic diagram of a surgical system incorporating a surgical instrument constructed in accordance with the invention; [0017]FIG. 2 is a side view. partly in section, of the distal end of a surgical instrument constructed in accordance with the invention; [
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