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

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

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