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

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

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