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

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

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