1. Build a test set from the specification Of' procedure search given in item 7 of Section 22.214.171.124. Use the specification to produce not only the test set, but also the corresponding oracle. 2. Slack-box techniques do not always solve the oracle problem. Find a case where they are of no help for such a problem among the examples provided in Section 126.96.36.199. Can you why this unfortunate circumstance occurs? Could' you devise'evise an approach to enrich the technique so that it helps solve the oracle problent?