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

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

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