Expression Form Types

Fun in-class exercise: Write the sum-of-products expression for the expression $E$ represented by the truth table below:

$x$	$y$	$z$	$E$
$0$	$0$	$0$	$1$
$0$	$0$	$1$	$1$
$0$	$1$	$0$	$0$
$0$	$1$	$1$	$0$
$1$	$0$	$0$	$1$
$1$	$0$	$1$	$0$
$1$	$1$	$0$	$1$
$1$	$1$	$1$	$1$

Reminder: To build the expression, look at the instances when $E$ is true (= equal to $1$.)