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

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

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