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

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

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