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

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

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