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

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

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