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

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

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