*SUPPORT*
IN: dax wif OUT: BLUE PINK
IN: dax dax OUT: BLUE BLUE
IN: lug lug OUT: RED RED
IN: lug blicket gazzer OUT: PURPLE RED
IN: lug wif dax OUT: RED PINK BLUE
IN: dax blicket lug OUT: RED BLUE
IN: gazzer kiki wif OUT: PINK PURPLE
IN: lug kiki gazzer OUT: PURPLE RED
IN: dax gazzer gazzer OUT: BLUE PURPLE PURPLE
IN: dax zup OUT: BLUE BLUE
IN: dax OUT: BLUE
IN: gazzer blicket dax OUT: BLUE PURPLE
IN: wif blicket dax OUT: BLUE PINK
IN: gazzer kiki gazzer OUT: PURPLE PURPLE

*QUERY*
IN: gazzer blicket lug OUT: RED PURPLE
IN: wif OUT: PINK
IN: wif gazzer OUT: PINK PURPLE
IN: wif kiki wif OUT: PINK PINK
IN: wif zup OUT: PINK PINK
IN: dax dax blicket lug OUT: BLUE RED BLUE
IN: gazzer blicket gazzer OUT: PURPLE PURPLE
IN: lug kiki dax OUT: BLUE RED
IN: lug gazzer wif wif OUT: RED PURPLE PINK PINK
IN: wif kiki lug OUT: RED PINK

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