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

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

*GRAMMAR*
dax -> YELLOW 
 wif -> BLUE 
 kiki -> GREEN 
 fep -> PURPLE 
 x1 tufa x2 -> [x2] [x1] [x1] [x2] [x2] 
 u1 gazzer u2 -> [u1] [u2] 
 u1 lug x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 