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

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

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