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

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

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