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

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

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