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

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

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