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

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

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