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

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

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