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

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

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