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

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

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