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

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

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