G06F16/40	.of multimedia data, e.g. slideshows comprising image and additional audio data(retrieval of still image data G06F16/50; retrieval of audio data G06F16/60; retrieval of video data G06F16/70);
	Note(s) In groups G06F 16/40-G06F 16/45, subject matter relevant to retrieval characterised by using metadata, when it is determined to be novel and non-obvious, must also be classified in groups G06F 16/48-G06F 16/487.[2019.01]