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

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

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