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

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

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