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.

the features of a production vehicle or production car are mass-produced identical models, offered for sale to the public.
production vehicle

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

ignace murwanashyaka (14 may 1963 – 16 april 2019) was a rwandan rebel leader.

ignace murwanashyaka