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

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

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