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.

Q: defibrillation is the act of defibrillating the heart to treat the heart when it is not pushing blood because the heart muscle is not working in any pattern.

A: defibrillation
****
Q: platinum is a soft, heavy, white metal.

A: platinum
****
Q: morsain is a commune.

A:
morsain
****