*SUPPORT*
IN: dax gazzer blicket OUT: YELLOW GREEN
IN: dax gazzer blicket zup OUT: YELLOW GREEN YELLOW GREEN
IN: kiki gazzer kiki wif OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: tufa gazzer tufa OUT: PURPLE PURPLE
IN: kiki wif OUT: BLUE BLUE BLUE
IN: kiki OUT: BLUE
IN: blicket OUT: GREEN
IN: kiki gazzer blicket OUT: BLUE GREEN
IN: dax zup OUT: YELLOW YELLOW
IN: tufa kiki OUT: PURPLE BLUE
IN: blicket tufa gazzer blicket OUT: GREEN PURPLE GREEN
IN: blicket kiki gazzer blicket OUT: GREEN BLUE GREEN
IN: blicket gazzer dax zup OUT: GREEN YELLOW GREEN YELLOW
IN: kiki gazzer dax wif OUT: BLUE YELLOW BLUE YELLOW BLUE YELLOW

*QUERY*
IN: tufa zup OUT: PURPLE PURPLE
IN: kiki gazzer kiki zup zup OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: tufa OUT: PURPLE
IN: kiki dax OUT: BLUE YELLOW
IN: dax gazzer tufa OUT: YELLOW PURPLE
IN: tufa gazzer kiki OUT: PURPLE BLUE
IN: dax OUT: YELLOW
IN: blicket wif OUT: GREEN GREEN GREEN
IN: blicket gazzer kiki wif OUT: GREEN BLUE GREEN BLUE GREEN BLUE
IN: kiki gazzer tufa OUT: BLUE PURPLE

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