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

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

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