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

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

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