Problem 1: linking Q1216998 (en:Neoplasm) with Q133212 (de:Tumor)
en:Neoplasm used to have a link to de:Neoplasma, which redirects to de:Tumor. We could then infer that Q1216998 (en:neoplasm) and Q133212 (de:tumor) were describing the same concept. However, now editor-added inter-language links cannot be used as suggested in the paper, as links between articles are being generated by Wikidata only. See T203041#4641969 for more info. How do we make sure that we're not recommending an existing article for creation if it is represented differently in Wikidata?
Problem 2: linking en:Cherry with de:Vogel-Kirsche
Fruit cherry has its own article on enwiki, but is part of another article on dewiki. How do we make sure that we don't recommend "Cherry" for creation to dewiki users?
Possible solutions are being drafted here.