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

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

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