Error in enum filtering

[HeeroYui]

the code:

Distance::= SEQUENCE {
	value	INTEGER(1..16384),
	unit	RSCUnit (2..4|6..8)
}

does not work. does not supported the |

with RSCUnit:

RSCUnit::= INTEGER {
	kmperh				(0),
	milesperh			(1),
	kilometer			(2),
	meter				(3),
	decimeter			(4),
	centimeter			(5),
	mile				(6),
	yard				(7),
	foot				(8),
	minutesOfTime		(9),
	tonnes				(10),
	hundredkg			(11),
	pound				(12), 
	rateOfIncline		(13)
	-- other value reserved for future use
	} (0..15)