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

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

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