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

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

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