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

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

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