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

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

*GRAMMAR*
gazzer -> RED 
 zup -> GREEN 
 fep -> PURPLE 
 kiki -> YELLOW 
 u1 lug u2 -> [u2] [u1] [u1] 
 u1 tufa -> [u1] [u1] 
 x1 wif x2 -> [x2] [x2] [x1] [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 