Complex sentence: British Internet publisher, Rosie Cross, living in Newtown Australia which is a suburb of Sydney who can be also known as Rosie X-is the founder of Geek_girl, which is an extremely popular Australian magazine and website that began in 1995.
Split into simpler sentences: British Internet publisher, Rosie Cross, living in Newtown Australia which is a suburb of Sydney. Can be also known as Rosie X-is the founder of Geek_girl, which is an extremely popular Australian magazine and website that began in 1995.