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

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

*GRAMMAR*
dax -> PURPLE 
 zup -> BLUE 
 fep -> GREEN 
 kiki -> RED 
 u1 tufa u2 -> [u1] [u2] 
 x1 gazzer x2 -> [x2] [x1] 
 x1 lug -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 