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

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

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