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

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

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