| http://www.w3.org/ns/prov#value | - FIG. 4B is a flow diagram of an exemplary alternative embodiment of a portion of NAT filtering flow 137 of FIG. 4A. Rather than obtaining and storing a CT index at 414, 418 and 421 as in FIG. 4B, no CT index is obtained and stored at corresponding blocks 444, 448 and 441.
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