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

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

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