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

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

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