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

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

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