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

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

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