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

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

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