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

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

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