this is a sign
the sign is a rectangle
the sign is white
black writing on sign
the yellow metal railing
the white sign on the railing
black text on a white sign
a white sign on a gate
a yellow gate with a sign on it
yellow bars on a gate
a white warning sign 
large white metal sign
metal gate behind the sign
gate is painted yellow
dark pavement to the right of sidewalk
black border around sign
large sign mounted to gate
black and white sign 
writing on the sign 
a sign on a gate saying that it is not allowed to drive