$\sim(\sim p \rightarrow q) \equiv$

Which of the following is not a statement?

The logical statement $[\sim(\sim p \vee q) \vee (p \wedge r) \wedge (\sim q \wedge r)]$ is equivalent to

The negation of the conditional statement,"If it rains,$I$ shall go to school" is:

The statement $\sim[p \vee (\sim(p \wedge q))]$ is equivalent to

Statement $-1$: The statement $A \to (B \to A)$ is equivalent to $A \to (A \vee B)$.
Statement $-2$: The statement $\sim [(A \wedge B) \to (\sim A \vee B)]$ is a tautology.