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

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

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