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

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

*GRAMMAR*
fep -> BLUE 
 zup -> GREEN 
 gazzer -> YELLOW 
 tufa -> PURPLE 
 u1 dax u2 -> [u1] [u2] 
 x1 wif -> [x1] [x1] 
 x1 blicket -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 