*SUPPORT*
IN: dax wif dax OUT: PINK PINK
IN: dax kiki blicket zup kiki OUT: BLUE BLUE BLUE PINK PINK PINK
IN: gazzer dax gazzer blicket gazzer blicket fep kiki OUT: YELLOW YELLOW YELLOW PURPLE PURPLE PINK PURPLE
IN: gazzer OUT: PURPLE
IN: dax blicket gazzer wif fep OUT: YELLOW PURPLE PINK
IN: dax wif zup OUT: BLUE PINK
IN: zup blicket dax blicket gazzer kiki OUT: PURPLE PURPLE PURPLE PINK BLUE
IN: gazzer zup blicket fep kiki OUT: YELLOW YELLOW YELLOW PURPLE BLUE
IN: fep wif fep OUT: YELLOW YELLOW
IN: gazzer kiki OUT: PURPLE PURPLE PURPLE
IN: fep wif zup OUT: BLUE YELLOW
IN: fep wif dax OUT: PINK YELLOW
IN: zup wif gazzer OUT: PURPLE BLUE
IN: zup fep kiki blicket zup kiki OUT: BLUE BLUE BLUE BLUE YELLOW YELLOW YELLOW

*QUERY*
IN: fep wif gazzer OUT: PURPLE YELLOW
IN: fep kiki blicket zup dax dax kiki OUT: BLUE PINK PINK PINK PINK YELLOW YELLOW YELLOW
IN: fep kiki blicket zup kiki OUT: BLUE BLUE BLUE YELLOW YELLOW YELLOW
IN: zup kiki OUT: BLUE BLUE BLUE
IN: gazzer kiki blicket gazzer OUT: PURPLE PURPLE PURPLE PURPLE
IN: zup OUT: BLUE
IN: dax OUT: PINK
IN: zup dax OUT: BLUE PINK
IN: fep OUT: YELLOW
IN: dax fep blicket zup wif fep blicket fep OUT: YELLOW YELLOW BLUE PINK YELLOW

*GRAMMAR*
fep -> YELLOW 
 dax -> PINK 
 zup -> BLUE 
 gazzer -> PURPLE 
 u1 wif u2 -> [u2] [u1] 
 u1 kiki -> [u1] [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 