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

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

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