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

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

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