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

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

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