*SUPPORT*
IN: dax zup OUT: PINK YELLOW
IN: dax blicket dax OUT: PINK PINK PINK
IN: fep blicket dax OUT: BLUE PINK BLUE
IN: fep blicket tufa OUT: BLUE GREEN BLUE
IN: fep blicket fep OUT: BLUE BLUE BLUE
IN: zup OUT: YELLOW
IN: tufa OUT: GREEN
IN: zup gazzer OUT: YELLOW YELLOW YELLOW
IN: zup tufa kiki dax OUT: YELLOW GREEN PINK PINK
IN: zup fep kiki dax OUT: YELLOW BLUE PINK PINK
IN: fep gazzer OUT: BLUE BLUE BLUE
IN: zup fep gazzer OUT: YELLOW BLUE BLUE BLUE
IN: fep OUT: BLUE
IN: fep zup kiki zup kiki fep OUT: BLUE YELLOW YELLOW BLUE BLUE YELLOW BLUE BLUE

*QUERY*
IN: dax blicket tufa OUT: PINK GREEN PINK
IN: dax OUT: PINK
IN: tufa blicket fep OUT: GREEN BLUE GREEN
IN: zup zup dax zup fep blicket zup OUT: YELLOW YELLOW PINK YELLOW BLUE YELLOW BLUE
IN: tufa gazzer OUT: GREEN GREEN GREEN
IN: dax gazzer OUT: PINK PINK PINK
IN: fep tufa blicket dax OUT: BLUE GREEN PINK GREEN
IN: fep blicket zup OUT: BLUE YELLOW BLUE
IN: zup blicket fep OUT: YELLOW BLUE YELLOW
IN: zup kiki tufa OUT: YELLOW GREEN GREEN

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