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

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

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