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

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

*GRAMMAR*
tufa -> YELLOW 
 dax -> BLUE 
 lug -> PINK 
 fep -> GREEN 
 x1 wif x2 -> [x1] [x2] [x1] 
 x1 kiki x2 -> [x2] [x1] 
 u1 gazzer u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 