a	b	c
0 1 UNAVAILABLE UNK X	0 1 UNAVAILABLE UNK X	0 1 UNAVAILABLE UNK X
		
0	0	0
1	1	1
GDK	GDK	1
GDC	GDC	GDC
GDK	GDK	GDK
GDK	GDK	GDK
GDK	GDK	GDK
GDC	GDC	GDC
X	X	X
UNK	UNK	UNK
UNAVAILABLE	UNAVAILABLE	UNAVAILABLE
