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

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

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