2. In the first problem, there were 9 processes, many of which were listed as pairs under the precedence relation. Suppose we are dealing with a system of only 5 processes named P1 through P5. You are given a set of constraints that are expressed by the following precedence relation: > (P1,P3), (P1, PS5), (P2,P4), (P3, P4), (P4, P5)} Provide pseudocode to show how you can use semaphores to enforce these constraints (i.e., the precedence relation →).

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