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

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

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