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: "hail to the chief" is the official presidential anthem of the united states.

A: hail to the chief
****
Q: sir philip anthony hopkins cbe (born 31 december 1937) is a welsh actor of movies, theater and television.

A: anthony hopkins
****
Q: claudio abbado (26 june 1933 – 20 january 2014), was an italian conductor.

A:
claudio abbado
****