Hi Fabrizio,
unfortunately you can't fulltext search all the scholarly articles , you should better work with indexed properties, so
you can query for other articles with microgravity as main subject ... With the ajax based wikidata search 
 
SELECT ?item
WHERE {
    ?item wdt:P31 wd:Q13442814;
          wdt:P921 wd:Q48655.
}
 
Best regards,
 
ciao matthias
 
 
Gesendet: Freitag, 14. Dezember 2018 um 18:55 Uhr
Von: "Fabrizio Carrai" <fabrizio.carrai@gmail.com>
An: "Discussion list for the Wikidata project" <wikidata@lists.wikimedia.org>
Betreff: Re: [Wikidata] Query on scholarly article fails
Thanks again to Ettore, but I immediately found another timeout problem when I just added a FILTER to find all the articles with the word "biokis"  in the title
 
SELECT ?istanza_di ?instanza_diLabel WHERE {
  ?istanza_di wdt:P31 wd:Q13442814.
  ?istanza_di rdfs:label ?instanza_diLabel.
  FILTER((LANG(?instanza_diLabel)) = "en").
  FILTER(CONTAINS(LCASE(?instanza_diLabel), "biokis"))
}
LIMIT 100
 
At least one article should be returned: 
but I got a timeout.
 
Thanks to anybody that can help
 
Fabrizio
 
 
Il giorno ven 14 dic 2018 alle ore 10:12 Ettore RIZZA <ettorerizza@gmail.com> ha scritto:
Hello Fabrizio, 
 
It seems that the problem comes from SERVICE wikibase:label. As said in another discussion, the query executes in less than one second if you rewrite it in this way.
 
Cheers,
 
Ettore Rizza
 
Le ven. 14 déc. 2018 à 09:59, Fabrizio Carrai <fabrizio.carrai@gmail.com> a écrit :
Hello all,
the following query ends with a timeot:
 
SELECT ?istanza_di ?istanza_diLabel WHERE {
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  ?istanza_di wdt:P31 wd:Q13442814.
}
LIMIT 10
 
Can anybody explain why ?
Thanks in advance
 
--
Fabrizio
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