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

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

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