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

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

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