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

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

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