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

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

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