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

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

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