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

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

*GRAMMAR*
dax -> RED 
 zup -> YELLOW 
 wif -> BLUE 
 gazzer -> GREEN 
 u1 kiki x1 -> [x1] [x1] [x1] [u1] [x1] 
 x1 fep -> [x1] [x1] 
 x1 tufa x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 