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

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

*GRAMMAR*
kiki -> GREEN 
 wif -> BLUE 
 zup -> PURPLE 
 fep -> YELLOW 
 u1 tufa u2 -> [u2] [u1] 
 x1 gazzer u1 -> [x1] [x1] [u1] 
 x1 dax x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 