the zebra is stripes
a zebra behind bars
a black and white zebra
a black fence in front of zebra
zebra in an enclosure in a zoo
zebra in the cage
bars of the zebra enclosure
the zebra is black and white 
the bars are metallic 
the bars are black
the poles are made of iron
the zebra is indoors 
a zebra bent down
a zebra in a cage
a zebra eating hay off the ground
the wire rods of the cage
a grazing zebra
a zebra standing in the shade inside its enclosure at the zoo