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

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

*GRAMMAR*
fep -> RED 
 kiki -> PURPLE 
 tufa -> BLUE 
 zup -> GREEN 
 x1 lug x2 -> [x2] [x1] 
 u1 dax -> [u1] [u1] [u1] 
 u1 wif u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 