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

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

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