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

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

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