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

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

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