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

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

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