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

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

*GRAMMAR*
zup -> YELLOW 
 tufa -> RED 
 fep -> PURPLE 
 dax -> GREEN 
 u1 kiki u2 -> [u1] [u2] [u1] 
 u1 gazzer u2 -> [u1] [u2] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 