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

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

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