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

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

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