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

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

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