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

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

*GRAMMAR*
zup -> RED 
 blicket -> YELLOW 
 tufa -> GREEN 
 dax -> PINK 
 x1 fep x2 -> [x1] [x2] [x1] [x1] 
 x1 gazzer u1 -> [x1] [u1] 
 x1 lug x2 -> [x1] [x2] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 