In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

when was the guns and roses riot in st louis
July 2, 1991

who plays stephen in as time goes by
Paul Chapman

who wins the 2017 australian open women's single title

Serena Williams