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

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

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