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.

Ex Input:
accountancy or accounting is the job of sharing financial information about a business to managers and shareholders (people who have invested in the business).

Ex Output:
accountancy


Ex Input:
veronika marchenko is a russian activist.

Ex Output:
veronika marchenko


Ex Input:
joanna crussie devarona, better known as joanna kerns (born february 12, 1953) in san francisco, california) is an american actress.

Ex Output:

joanna kerns