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

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

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