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

*QUERY*
IN: zup lug dax OUT: BLUE GREEN
IN: dax lug fep blicket zup blicket dax OUT: YELLOW BLUE GREEN BLUE
IN: gazzer kiki OUT: PURPLE PURPLE
IN: dax lug dax OUT: BLUE BLUE
IN: zup gazzer blicket gazzer OUT: GREEN PURPLE PURPLE
IN: fep lug dax kiki blicket zup blicket gazzer OUT: BLUE YELLOW BLUE YELLOW GREEN PURPLE
IN: dax OUT: BLUE
IN: gazzer OUT: PURPLE
IN: gazzer lug dax kiki blicket gazzer OUT: BLUE PURPLE BLUE PURPLE PURPLE
IN: dax lug zup kiki OUT: GREEN BLUE GREEN BLUE

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