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

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

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