*SUPPORT*
IN: gazzer lug fep tufa blicket OUT: RED GREEN BLUE RED GREEN BLUE
IN: lug lug fep lug OUT: BLUE BLUE BLUE
IN: gazzer gazzer OUT: RED RED
IN: tufa OUT: GREEN
IN: dax lug fep dax OUT: YELLOW YELLOW BLUE
IN: tufa tufa tufa fep gazzer blicket OUT: GREEN GREEN RED GREEN GREEN GREEN RED GREEN
IN: tufa fep tufa OUT: GREEN GREEN
IN: gazzer wif OUT: RED RED RED
IN: lug OUT: BLUE
IN: dax OUT: YELLOW
IN: dax fep lug OUT: BLUE YELLOW
IN: dax lug OUT: YELLOW BLUE
IN: tufa tufa fep gazzer OUT: GREEN RED GREEN
IN: gazzer fep lug OUT: BLUE RED

*QUERY*
IN: gazzer fep dax OUT: YELLOW RED
IN: lug blicket blicket OUT: BLUE BLUE BLUE BLUE
IN: dax wif blicket OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: dax fep tufa OUT: GREEN YELLOW
IN: dax dax blicket OUT: YELLOW YELLOW YELLOW YELLOW
IN: gazzer OUT: RED
IN: tufa wif OUT: GREEN GREEN GREEN
IN: tufa dax lug OUT: GREEN YELLOW BLUE
IN: lug fep dax blicket blicket OUT: YELLOW BLUE YELLOW BLUE YELLOW BLUE YELLOW BLUE
IN: gazzer blicket OUT: RED RED

*GRAMMAR*
tufa -> GREEN 
 dax -> YELLOW 
 lug -> BLUE 
 gazzer -> RED 
 x1 blicket -> [x1] [x1] 
 u1 fep u2 -> [u2] [u1] 
 x1 wif -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 