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

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

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