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

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

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