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

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

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