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

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

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