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

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

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