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

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

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