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

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

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