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

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

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