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

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

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