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

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

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