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

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

*GRAMMAR*
wif -> RED 
 kiki -> GREEN 
 fep -> BLUE 
 dax -> PINK 
 x1 tufa x2 -> [x1] [x2] [x2] 
 u1 gazzer -> [u1] [u1] [u1] 
 u1 blicket u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 