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

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

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