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

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

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