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

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

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