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

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

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