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

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

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