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

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

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