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

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

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