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

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

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