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

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

*GRAMMAR*
dax -> PURPLE 
 gazzer -> YELLOW 
 tufa -> GREEN 
 wif -> BLUE 
 x1 fep x2 -> [x2] [x1] 
 u1 zup u2 -> [u1] [u2] [u1] 
 u1 lug x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 