This building is surrounded by firewalls.

He pasted a poster on the wall.

That building is very old.

The children were playing in the park, encircling a tree.

This building is equipped with the latest fire prevention facilities.

After the earthquake, a crack developed in the wall.

The fire doors of this building must always be kept closed.

His favorite vase is placed in this niche.

I thought his plan was perfect, but in fact there were some flaws.

He said there's no such thing as a perfect human.