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

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

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