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

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

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