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

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

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