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

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

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