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

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

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