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

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

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