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

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

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