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

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

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