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

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

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