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.

Input: Consider Input: island of the blue dolphins is an american book written for children by scott o'dell.

Output: island of the blue dolphins


Input: Consider Input: louis meyers (1955 or 1956 – march 11, 2016) was a american festival organizer and co-founder of south by southwest.

Output: louis meyers


Input: Consider Input: chiayi city (; taiwanese: ka-gī chhī) is a provincial city of southwestern taiwan province of the republic of china.


Output: chiayi city