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

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

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