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

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

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