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

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

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