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

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

*GRAMMAR*
zup -> RED 
 dax -> PURPLE 
 gazzer -> BLUE 
 lug -> GREEN 
 u1 fep -> [u1] [u1] 
 u1 blicket -> [u1] [u1] 
 x1 tufa x2 -> [x1] [x1] [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 