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: the diplura are a biological order.

Output: diplura


Input: Consider Input: leni robredo (born april 23, 1965) is a filipina lawyer and politician.

Output: leni robredo


Input: Consider Input: mule deer ("odocileus hemionus") is a species of deers.


Output: mule deer