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

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

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