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

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

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