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

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

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