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

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

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