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

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

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