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

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

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