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

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

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