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

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

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