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

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

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