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

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

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