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

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

*GRAMMAR*
zup -> YELLOW 
 dax -> RED 
 tufa -> BLUE 
 kiki -> GREEN 
 u1 lug x1 -> [x1] [x1] [u1] 
 x1 wif x2 -> [x1] [x1] [x2] 
 x1 blicket u1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 