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

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

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