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

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

*GRAMMAR*
zup -> RED 
 wif -> PURPLE 
 dax -> BLUE 
 gazzer -> GREEN 
 x1 fep x2 -> [x2] [x1] 
 x1 blicket x2 -> [x1] [x2] 
 u1 tufa u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 