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

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

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