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

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

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