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

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

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