Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Krist Novoselic and Dave Grohl were two thirds of which band, formed in Aberdeen (Washington State) whose albums include Bleach and In Utero?
dave grohl

In which classic T.V. crime series did Captain Frank Furillo appear ?
frank furillo

One of the earliest European explorers to reach Australia and New Zealand has which island named after him?
australia