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

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

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