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

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

*GRAMMAR*
fep -> PURPLE 
 kiki -> YELLOW 
 lug -> GREEN 
 dax -> RED 
 u1 blicket u2 -> [u1] [u2] 
 u1 zup u2 -> [u2] [u1] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 