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

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

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