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

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

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