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

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

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