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

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

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