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

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

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