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

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

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