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

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

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