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

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

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