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

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

*GRAMMAR*
kiki -> RED 
 zup -> YELLOW 
 wif -> PURPLE 
 fep -> BLUE 
 u1 lug u2 -> [u2] [u1] 
 x1 gazzer u1 -> [u1] [x1] [u1] [x1] 
 x1 tufa x2 -> [x2] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 