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

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

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