*SUPPORT*
IN: dax dax kiki dax kiki dax kiki wif OUT: RED RED RED RED YELLOW
IN: wif blicket kiki blicket lug wif fep blicket OUT: PINK YELLOW YELLOW PINK PINK
IN: zup OUT: BLUE
IN: dax zup kiki blicket OUT: RED BLUE PINK
IN: blicket blicket kiki wif lug dax kiki dax OUT: RED RED PINK PINK YELLOW
IN: blicket fep wif fep dax OUT: RED YELLOW PINK
IN: zup kiki wif OUT: BLUE YELLOW
IN: blicket kiki blicket OUT: PINK PINK
IN: zup blicket wif blicket fep dax OUT: RED BLUE PINK YELLOW PINK
IN: zup kiki blicket kiki blicket OUT: BLUE PINK PINK
IN: zup lug wif lug zup OUT: BLUE YELLOW BLUE
IN: wif OUT: YELLOW
IN: dax kiki dax kiki dax OUT: RED RED RED
IN: dax kiki blicket fep blicket OUT: PINK RED PINK

*QUERY*
IN: dax dax wif OUT: RED RED YELLOW
IN: zup dax OUT: BLUE RED
IN: zup wif fep blicket kiki zup fep blicket OUT: PINK PINK BLUE YELLOW BLUE
IN: zup fep wif OUT: YELLOW BLUE
IN: dax wif OUT: RED YELLOW
IN: blicket OUT: PINK
IN: zup blicket kiki wif fep blicket OUT: PINK BLUE PINK YELLOW
IN: blicket lug blicket OUT: PINK PINK
IN: wif kiki wif OUT: YELLOW YELLOW
IN: dax OUT: RED

*GRAMMAR*
zup -> BLUE 
 blicket -> PINK 
 wif -> YELLOW 
 dax -> RED 
 x1 lug x2 -> [x2] [x1] 
 x1 kiki u1 -> [x1] [u1] 
 x1 fep u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 