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

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

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