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

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

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