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

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

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