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

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

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