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

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

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