*SUPPORT*
IN: dax dax fep wif OUT: GREEN GREEN BLUE GREEN GREEN BLUE
IN: dax lug fep OUT: BLUE GREEN BLUE
IN: gazzer dax OUT: YELLOW GREEN
IN: dax OUT: GREEN
IN: fep gazzer OUT: BLUE YELLOW
IN: zup wif wif OUT: RED RED RED RED
IN: fep OUT: BLUE
IN: zup dax OUT: RED GREEN
IN: fep wif OUT: BLUE BLUE
IN: zup zup blicket gazzer OUT: YELLOW RED RED
IN: gazzer fep gazzer OUT: YELLOW BLUE YELLOW
IN: dax gazzer gazzer wif OUT: GREEN YELLOW YELLOW GREEN YELLOW YELLOW
IN: dax zup gazzer lug zup OUT: RED GREEN RED YELLOW RED
IN: gazzer lug zup wif OUT: RED YELLOW RED RED YELLOW RED

*QUERY*
IN: zup OUT: RED
IN: fep zup wif OUT: BLUE RED BLUE RED
IN: gazzer gazzer dax blicket gazzer gazzer OUT: YELLOW YELLOW YELLOW YELLOW GREEN
IN: dax dax gazzer blicket zup OUT: RED GREEN GREEN YELLOW
IN: fep gazzer gazzer OUT: BLUE YELLOW YELLOW
IN: fep lug zup gazzer lug gazzer OUT: YELLOW RED YELLOW BLUE RED YELLOW YELLOW
IN: zup blicket fep gazzer zup OUT: BLUE YELLOW RED RED
IN: gazzer blicket zup wif wif OUT: RED YELLOW RED YELLOW RED YELLOW RED YELLOW
IN: gazzer OUT: YELLOW
IN: zup wif OUT: RED RED

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