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

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

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