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

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

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