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

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

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