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

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

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