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

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

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