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

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

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