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

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

*GRAMMAR*
lug -> BLUE 
 dax -> PINK 
 zup -> RED 
 kiki -> YELLOW 
 x1 fep x2 -> [x2] [x1] 
 x1 tufa -> [x1] [x1] [x1] 
 x1 wif -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 