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

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

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