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

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

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