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

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

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