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

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

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