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

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

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