*SUPPORT*
IN: dax kiki fep kiki blicket dax OUT: GREEN PINK GREEN GREEN PINK
IN: kiki wif OUT: PINK PURPLE
IN: wif blicket wif OUT: PURPLE PURPLE PURPLE
IN: zup OUT: BLUE
IN: kiki blicket wif OUT: PINK PURPLE PURPLE
IN: wif fep wif blicket kiki OUT: PURPLE PINK PINK PURPLE
IN: dax kiki OUT: GREEN PINK
IN: dax OUT: GREEN
IN: kiki zup OUT: PINK BLUE
IN: wif dax OUT: PURPLE GREEN
IN: wif OUT: PURPLE
IN: wif blicket kiki gazzer dax blicket kiki OUT: GREEN PINK PINK PURPLE PINK PINK
IN: wif gazzer wif OUT: PURPLE PURPLE
IN: dax fep dax OUT: GREEN GREEN

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

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