What is the fine-grained topic of the following text: Harrison will launch the Gabriola Museum’s 2016 Talk Series with a multi media story about the Martin Mars water bomber at 7 pm on Thurs, Feb 25 at the Hive Emporium in the Folklife Village centre. Only return the topic.
Harrison's multimedia presentation about the Martin Mars water bomber for the Gabriola Museum’s 2016 Talk Series