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

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

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