Match the compound proposition on the left with the equivalent compound proposition on the right.

$($p $$q$)$ r

$($p$$q$)$r drop zone empty.

$($p $$ q$)$ r

$($p $$q$)$r drop zone empty.

$$p $($q $$ r$)$

$$p$($q$$ r$)$ drop zone empty.

p $($q $$ r$)$

p$($q$$r$)$ drop zone empty.

$($p $$ q$)$ r

r $($p $$q$)$

$(($p $$q$)$r$)$

$($p $$ r$)($p $$q$)$