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

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

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