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

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

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