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

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

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