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

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

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