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

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

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