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

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

*GRAMMAR*
zup -> BLUE 
 wif -> RED 
 dax -> PURPLE 
 fep -> YELLOW 
 x1 kiki x2 -> [x2] [x2] [x1] 
 u1 lug u2 -> [u2] [u2] [u1] 
 u1 tufa -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 