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

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

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