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

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

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