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

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

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