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

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

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