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:
bobital (, gallo: "bobitau") is a commune.

Ex Output:
bobital


Ex Input:
lagos state, sometimes referred to as lagos, is a state located in the southwestern part of nigeria.

Ex Output:
lagos state


Ex Input:
geoff case (18 september 1935 – 22 june 2018) was an australian rules footballer.

Ex Output:

geoff case