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

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

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