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

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

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