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

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

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