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:
plankton are drifting organisms that live in the surface layers of the ocean.
answer:
plankton


question:
camborne is a town in west cornwall, england, united kingdom.
answer:
camborne


question:
computer engineering is the practice of making computers and their parts.
answer:

computer engineering