*SUPPORT*
IN: fep fep dax lug tufa OUT: PINK PINK BLUE BLUE GREEN BLUE
IN: fep lug tufa OUT: PINK PINK GREEN PINK
IN: blicket lug fep OUT: RED RED PINK RED
IN: tufa dax OUT: GREEN BLUE
IN: tufa kiki OUT: GREEN GREEN GREEN
IN: blicket kiki OUT: RED RED RED
IN: dax dax OUT: BLUE BLUE
IN: fep kiki OUT: PINK PINK PINK
IN: blicket dax OUT: RED BLUE
IN: fep blicket OUT: PINK RED
IN: blicket lug blicket OUT: RED RED RED RED
IN: fep fep tufa lug dax OUT: PINK PINK GREEN GREEN BLUE GREEN
IN: dax lug blicket OUT: BLUE BLUE RED BLUE
IN: blicket lug dax OUT: RED RED BLUE RED

*QUERY*
IN: dax OUT: BLUE
IN: dax lug dax OUT: BLUE BLUE BLUE BLUE
IN: tufa OUT: GREEN
IN: fep blicket lug tufa OUT: PINK RED RED GREEN RED
IN: tufa lug tufa OUT: GREEN GREEN GREEN GREEN
IN: dax lug fep OUT: BLUE BLUE PINK BLUE
IN: dax kiki OUT: BLUE BLUE BLUE
IN: fep OUT: PINK
IN: dax fep kiki OUT: BLUE PINK BLUE PINK BLUE PINK
IN: blicket OUT: RED

*GRAMMAR*
tufa -> GREEN 
 blicket -> RED 
 dax -> BLUE 
 fep -> PINK 
 u1 lug u2 -> [u1] [u1] [u2] [u1] 
 x1 gazzer -> [x1] [x1] [x1] 
 x1 kiki -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 