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

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

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