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

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

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