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

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

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