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

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

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