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

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

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