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

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

*GRAMMAR*
wif -> BLUE 
 tufa -> GREEN 
 dax -> PINK 
 fep -> RED 
 u1 gazzer u2 -> [u2] [u1] 
 x1 zup x2 -> [x1] [x2] 
 u1 blicket u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 