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

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

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