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

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

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