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

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

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