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

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

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