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

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

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