*SUPPORT*
IN: lug wif tufa gazzer dax gazzer fep OUT: PURPLE PINK GREEN BLUE PINK PURPLE
IN: lug OUT: GREEN
IN: tufa dax fep OUT: BLUE PINK PURPLE
IN: fep tufa OUT: PURPLE BLUE
IN: lug lug wif lug OUT: GREEN GREEN GREEN
IN: lug lug OUT: GREEN GREEN
IN: dax lug fep gazzer lug gazzer tufa OUT: BLUE GREEN PINK GREEN PURPLE GREEN BLUE
IN: dax lug gazzer lug gazzer dax OUT: PINK GREEN PINK GREEN GREEN PINK
IN: lug gazzer dax zup dax OUT: PINK GREEN PINK PINK GREEN PINK PINK
IN: dax fep OUT: PINK PURPLE
IN: tufa zup tufa OUT: BLUE BLUE BLUE
IN: fep lug zup fep OUT: PURPLE GREEN PURPLE GREEN PURPLE
IN: dax zup fep OUT: PINK PINK PURPLE
IN: dax gazzer dax OUT: PINK PINK PINK

*QUERY*
IN: dax OUT: PINK
IN: tufa OUT: BLUE
IN: lug zup dax OUT: GREEN GREEN PINK
IN: fep fep gazzer tufa OUT: BLUE PURPLE PURPLE BLUE
IN: fep gazzer fep OUT: PURPLE PURPLE PURPLE
IN: lug gazzer dax OUT: PINK GREEN PINK
IN: dax dax OUT: PINK PINK
IN: fep gazzer lug OUT: GREEN PURPLE GREEN
IN: tufa lug OUT: BLUE GREEN
IN: tufa wif dax OUT: BLUE PINK

*GRAMMAR*
tufa -> BLUE 
 lug -> GREEN 
 fep -> PURPLE 
 dax -> PINK 
 x1 zup u1 -> [x1] [x1] [u1] 
 x1 wif u1 -> [x1] [u1] 
 x1 gazzer u1 -> [u1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 