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

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

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