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

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

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