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

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

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