Sentence handling algorithm appears to suck at HTML handling. I've filed a bug for it: https://bugzilla.wikimedia.org/show_bug.cgi?id=71671 As a workaround, try plaintext extracts: https://et.wikipedia.org/w/api.php?action=query&prop=extracts%7Ccategor… or switch from requesting a number of sentences to a number of characters. On Sun, Oct 5, 2014 at 8:34 AM, Kristian Kankainen &lt;kristian(a)eki.ee <mailto:kristian@eki.ee>> wrote: Hi! When I query the Estonian Wikipedia's Web API for the article's first sentence, I sometimes get empty response. Actually it gives back an horizontal rule and thats it. For example: https://et.wikipedia.org/w/api.php?action=query&prop=extracts|categorie… <https://et.wikipedia.org/w/api.php?action=query&prop=extracts%7Ccategories&exsentences=1&redirects=&format=jsonfm&cllimit=10&exlimit=1&indexpageids=&maxlag=10&titles=j%C3%A4rv> gives only an horizontal rule as the extract: "extract": "<hr />", Can anyone say what is happening here. Is the article's source organized in a wrong way or is it a problem on the APIs sentence parser side? Best regards Kristian Kankainen _______________________________________________ Mediawiki-api mailing list Mediawiki-api(a)lists.wikimedia.org <mailto:Mediawiki-api@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/mediawiki-api -- Best regards, Max Semenik ([[User:MaxSem]]) _______________________________________________ Mediawiki-api mailing list Mediawiki-api(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-api