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

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

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