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:
chelers is a commune.

Ex Output:
chelers

Ex Input:
the mini estadi (english: mini stadium) is the home stadium of fc barcelona b, the reserve team of fc barcelona.

Ex Output:
mini estadi

Ex Input:
james whalen (1869 1929) was a canadian businessperson and entrepreneur based in port arthur, ontario, now part of thunder bay, ontario, with interests in the forest industries, shipbuilding, dredging, and towing.

Ex Output:
james whalen