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: galette, or more properly breton galette is a term used in french cuisine for various types of flat, round or freeform crusty cakes.

A: galette
****
Q: tuff (from italian "tufo") is a type of rock produced by the eruption of volcanoes.

A: tuff
****
Q: an part of any of the world's legal systems is impartiality.

A:
impartiality
****