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

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

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