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

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

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