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

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

*GRAMMAR*
zup -> PURPLE 
 tufa -> GREEN 
 dax -> PINK 
 fep -> BLUE 
 x1 kiki u1 -> [x1] [u1] 
 x1 wif u1 -> [x1] [u1] [u1] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 