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

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

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