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

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

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