*SUPPORT*
IN: gazzer blicket gazzer OUT: RED RED
IN: gazzer OUT: RED
IN: fep OUT: YELLOW
IN: gazzer gazzer blicket fep OUT: RED YELLOW RED
IN: dax kiki OUT: BLUE BLUE
IN: wif OUT: PURPLE
IN: wif blicket dax OUT: BLUE PURPLE
IN: dax blicket wif OUT: PURPLE BLUE
IN: fep fep tufa OUT: YELLOW YELLOW YELLOW
IN: wif blicket fep OUT: YELLOW PURPLE
IN: gazzer wif tufa OUT: RED PURPLE PURPLE
IN: dax OUT: BLUE
IN: gazzer blicket dax OUT: BLUE RED
IN: dax blicket gazzer OUT: RED BLUE

*QUERY*
IN: wif tufa OUT: PURPLE PURPLE
IN: wif wif kiki OUT: PURPLE PURPLE PURPLE
IN: dax dax fep tufa OUT: BLUE BLUE YELLOW YELLOW
IN: fep kiki OUT: YELLOW YELLOW
IN: gazzer tufa OUT: RED RED
IN: wif kiki OUT: PURPLE PURPLE
IN: gazzer fep tufa OUT: RED YELLOW YELLOW
IN: dax wif OUT: BLUE PURPLE
IN: gazzer blicket fep OUT: YELLOW RED
IN: fep tufa OUT: YELLOW YELLOW

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