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

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

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