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

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

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