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

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

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