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

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

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