You will be given a definition of a task first, then some input of the task.
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Which American vocalist (described by the British newspaper The Guardian as one of the greatest voices of her generation) whose repertoire included jazz, blues, folk, gospel and pop, was unknown outside Washington, D.C., until after she died of melanoma in 1996?
Output:
blues