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

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

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