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:
metal gear is an action-adventure stealth video game franchise made by konami.
answer:
metal gear


question:
county monaghan (in gaelic ) is a county in ireland.
answer:
county monaghan


question:
achernar is the name of the primary (or 'a') component of the binary system designated alpha eridani (α eridani).
answer:

achernar