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

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

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