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

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

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