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

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

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