instruction:
Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
question:
landing craft are small or medium sized boats.
answer:
landing craft


question:
the demographics of pakistan are a study of the population and the people.
answer:
demographics of pakistan


question:
the treaty of saint-clair-sur-epte was signed in the autumn of 911.
answer:

treaty of saint-clair-sur-epte