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

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

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