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

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

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