Two elements $x$, $y$ of a group are said to commute with each other if $xy = yx$.

Consider the group whose group table is given as follows ($e$ is the identity element):

	$e$	$x1$	$x2$	$x3$	$x4$	$x5$	$x6$	$x7$
$e$	$e$	$x1$	$x2$	$x3$	$x4$	$x5$	$x6$	$x7$
$x1$	$x1$	$x2$	$x3$	$e$	$x5$	$x6$	$x7$	$x4$
$x2$	$x2$	$x3$	$e$	$x1$	$x6$	$x7$	$x4$	$x5$
$x3$	$x3$	$e$	$x1$	$x2$	$x7$	$x4$	$x5$	$x6$
$x4$	$x4$	$x7$	$x6$	$x5$	$x2$	$x1$	$e$	$x3$
$x5$	$x5$	$x4$	$x7$	$x6$	$x3$	$x2$	$x1$	$e$
$x6$	$x6$	$x5$	$x4$	$x7$	$e$	$x3$	$x2$	$x1$
$x7$	$x7$	$x6$	$x5$	$x4$	$x1$	$e$	$x3$	$x2$

Using this group table, determine the elements that commute with $x5$ and enter them as a comma-separated list.