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

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

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