(WHEN)
equal
in
unin
>
>=
<
<=
==
!=
equal
unequal
(THEN)
:
:
(ELSE)
:
:
(WHEN)
equal
in
unin
>
>=
<
<=
==
!=
equal
unequal
(THEN)
:
:
equal
in
unin
>
>=
<
<=
==
!=
equal
unequal