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1) https://www.rtp.pt/noticias/desporto/busby-babes-os-meninos-de-ouro-do-manchester-united_i1056365
^ Images for sections 'Matt Busby: um perfil' and 'O desastre aéreo de Munique' are placed in <style> container before article, that make it inaccessible for IV (sure, we can fetch them to support this article, but we can fail in similiar case in future articles).
Also, in section 'Quem eram os Busby Babes?' present some interactive elements - click on 'Ver +' button and it will open detailed info about person in modal window. Styles for this element also putted in <style> and exists only in this article.
2) https://www.rtp.pt/noticias/desporto/estadios-do-mundial-2018_i1081769
^ article with infographics images. The second one will looks unreadable in IV unless we dont attach link to it:
but without correct handler we just make links to all images, that would be a rudimentary content in IV
3) https://www.rtp.pt/noticias/mundo/armas-quimicas-tipos-e-efeitos_i1072214
^ A dark background in an article created with CSS. Block with a dark background contains images with transparency and white text that will be lost in IV (because IV makes white bg for transparent images):
Similiar case: https://www.rtp.pt/noticias/mundo/coreia-uma-peninsula-dividida_i1074241 (here is also present Google Charts widgets that are not supported in IV)
4) https://www.rtp.pt/noticias/mundo/eua-e-coreia-do-norte-mudanca-de-tons_i1079763
^ Some two-column timeline. Dont have an idea how to display it in IV. Also created using custom styles