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

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

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