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

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

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