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

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

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