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

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

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