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

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

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