Within Polish (European?) legislation, an agreement on use of copyright needs to explicitly state in what areas you are allowed to copy/use the copyrighted work

Within Polish (European?) legislation, an agreement on use of copyright needs to explicitly state in what areas you are allowed to copy/use the copyrighted work. So, e.g. if an agreement didn't explicitly state that a company can use the work in TV (or Radio, or sth), then they don't have the right to do so. When new mediums are invented (like internet), you need to sign an annex to the agreement extending it to this medium. Having said that, I would still consider it a fair use to train model on given images, but using the trained model to replicate a specific style etc, would most likely be considered a new medium. (IANAL though)