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.
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Question: the nemean lion ( ""; latin: "leo nemaeus") was a vicious monster in greek mythology that lived at nemea.

Answer: nemean lion


Question: the world conference of life and work was an ecumenic conference.

Answer: world conference of life and work


Question: the national flag of ecuador was created in september 1860.

Answer:
flag of ecuador