A system, product, and method including automatically performing extraction of slides from multimodal content, performing object extraction from each of the slides, allowing object substitution through semantics and concepts of the objects extracted, processing audio synchronized with the slides enriched with cognitive computing, search engine, and knowledge base, to provide annotations of the slides, processing the audio synchronized with the object being presented in each slide to enhance semantics and understanding, and curating for each step with human-machine interaction to provide a learning process by the system.