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

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

*GRAMMAR*
gazzer -> BLUE 
 tufa -> RED 
 kiki -> PURPLE 
 fep -> YELLOW 
 x1 blicket u1 -> [u1] [u1] [x1] 
 x1 zup x2 -> [x1] [x2] 
 u1 dax u2 -> [u2] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 