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: philippe, chevalier de lorraine

A: chevalier de lorraine
****
Q: in 2013, esther peterson was inducted into the us department of labor's hall of honor.

A: esther peterson
****
Q: coelenterata was the name for an animal phylum.

A:
coelenterata
****