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

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

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