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

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

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