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

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

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