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

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

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