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

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

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