Use the Depth-First search algorithm to construct a strongly connected graph. 5. Let p, q be primitive statements for which q → p is false. Determine the truth values for each of the following: (a) p ∨ q (b) p → q (c) p ∧ q (d) ∼ p → ∼ q. 6. Construct the truth table for the compound statement p → (q → r), where p, q, and r are the primitives.