| http://www.w3.org/ns/prov#value | - cyclic group (preferably one having 1 to 30 carbon atoms, particularly 1 to 12 carbon atoms, the hetero atom including nitrogen, oxygen and sulfur, e.g., imidazolyl, pyridyl, quinolyl, furyl, thienyl, piperidyl, morpholino, benzoxazolyl, benzimidazolyl, benzothiazolyl, carbazolyl, and azepinyl ), and a silyl group (preferably one containing 3 to 40, particularly 3 to 30, especially 3 to 24, carbon
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