What is the fine-grained topic of the following text: Having used the event, which is held in Chorley’s Masonic Hall, to raise funds for various good causes in the past, they chose to support Rosemere this year as Pam’s sister Lorraine Dryden, also of Chorley, has recently been given the all clear after cancer treatment at Rosemere Cancer Centre. Only return the topic.
Fundraising event at Chorley's Masonic Hall for Rosemere Cancer Centre