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

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

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