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

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

*GRAMMAR*
kiki -> YELLOW 
 fep -> GREEN 
 tufa -> BLUE 
 wif -> RED 
 x1 lug -> [x1] [x1] 
 u1 zup u2 -> [u2] [u1] 
 x1 dax x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 