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

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

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