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

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

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