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

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

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