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

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

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