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

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

*GRAMMAR*
wif -> YELLOW 
 tufa -> PURPLE 
 dax -> BLUE 
 zup -> GREEN 
 u1 kiki -> [u1] [u1] 
 x1 gazzer -> [x1] [x1] 
 x1 fep x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 