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

*QUERY*
IN: fep wif tufa kiki zup tufa kiki OUT: BLUE BLUE PURPLE YELLOW BLUE BLUE
IN: tufa kiki OUT: BLUE BLUE
IN: tufa wif wif lug wif kiki zup wif OUT: YELLOW BLUE YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: tufa tufa kiki zup tufa tufa OUT: BLUE BLUE BLUE BLUE BLUE
IN: fep kiki zup fep kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: wif fep kiki OUT: YELLOW PURPLE PURPLE
IN: wif wif kiki OUT: YELLOW YELLOW YELLOW
IN: wif kiki OUT: YELLOW YELLOW
IN: tufa OUT: BLUE
IN: wif wif lug tufa fep OUT: YELLOW YELLOW BLUE PURPLE BLUE PURPLE

*GRAMMAR*
dax -> RED 
 wif -> YELLOW 
 tufa -> BLUE 
 fep -> PURPLE 
 x1 zup x2 -> [x2] [x1] 
 u1 kiki -> [u1] [u1] 
 x1 lug x2 -> [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 