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

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

*GRAMMAR*
fep -> GREEN 
 dax -> PURPLE 
 zup -> PINK 
 wif -> BLUE 
 u1 lug u2 -> [u1] [u2] 
 x1 gazzer x2 -> [x1] [x2] [x1] 
 x1 tufa u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 