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

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

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