E.11.DSG:4.4 - Test sufficiency and each item’s necessity

Call an answer a sufficient combination with every returned item necessary only when the Reference entry gives a recoverable candidate boundary, required result, and sufficiency rule, the combination satisfies that rule, and removing any returned item makes the result insufficient. The boundary is the resources actually inspected through the entry and its direct source returns, not every publication that might exist. This item-necessity test does not establish the smallest combination. A “smallest” claim also needs a declared size criterion and a comparison or argument showing that no smaller in-scope combination is sufficient.

When that test cannot be completed, return a bounded plausible combination and name the uncertainty or missing item. Do not disguise a convenient shortlist as a JointUseSet. Use G.5 only when every named returned resource is required for one named use and the current inclusion basis supports that all-items-needed claim.