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

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

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