*SUPPORT*
IN: gazzer kiki gazzer OUT: RED RED
IN: lug tufa wif OUT: BLUE BLUE YELLOW
IN: lug tufa gazzer OUT: BLUE BLUE RED
IN: wif blicket wif tufa lug OUT: YELLOW YELLOW BLUE YELLOW
IN: lug kiki lug OUT: BLUE BLUE
IN: gazzer OUT: RED
IN: lug kiki gazzer OUT: RED BLUE
IN: lug dax lug kiki gazzer OUT: BLUE PURPLE RED BLUE
IN: lug lug tufa dax OUT: BLUE BLUE BLUE PURPLE
IN: dax OUT: PURPLE
IN: dax blicket wif tufa lug OUT: YELLOW YELLOW BLUE PURPLE
IN: dax tufa lug OUT: PURPLE PURPLE BLUE
IN: wif wif kiki gazzer OUT: YELLOW RED YELLOW
IN: dax tufa gazzer blicket gazzer kiki dax OUT: PURPLE RED PURPLE PURPLE RED

*QUERY*
IN: gazzer tufa wif blicket wif dax tufa dax OUT: YELLOW PURPLE PURPLE PURPLE RED RED YELLOW
IN: lug tufa lug OUT: BLUE BLUE BLUE
IN: lug kiki dax OUT: PURPLE BLUE
IN: wif kiki wif OUT: YELLOW YELLOW
IN: gazzer dax OUT: RED PURPLE
IN: dax tufa dax OUT: PURPLE PURPLE PURPLE
IN: dax kiki wif OUT: YELLOW PURPLE
IN: wif tufa gazzer blicket gazzer lug kiki wif OUT: RED YELLOW BLUE YELLOW YELLOW RED
IN: lug OUT: BLUE
IN: lug lug OUT: BLUE BLUE

*GRAMMAR*
gazzer -> RED 
 dax -> PURPLE 
 lug -> BLUE 
 wif -> YELLOW 
 u1 kiki u2 -> [u2] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 tufa u2 -> [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 