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

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

*GRAMMAR*
dax -> RED 
 gazzer -> BLUE 
 wif -> PINK 
 lug -> PURPLE 
 u1 tufa u2 -> [u2] [u1] 
 u1 fep -> [u1] [u1] 
 u1 zup u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 