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

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

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