Empty Labels by querying with SPARQL in WikiData

Question

Update: This question is linked to the other question via 1 because it is about the same output data.

I have got a list of 1200 geographic enties like cities, lakes oder mountains as strings. I would like to enrich these enties with the authority file WikiData ID. This works but as result I get sometimes more than one WikiDataID suggestion. I need to define the right one by the apperance of any country (it doesn't matter which one) in the Statements as a constraint.

As an example I tried the city Karlsruhe. For the string "Karlsruhe" I get five results. In this case I choose the ID Q1040 (https://www.wikidata.org/wiki/Q1040). Now I have got the problem that I don't know how to query the altLabel (Also konwn as) and the Label in Englisch, German and French. With the current code I get empty entries for the altLabel and the Labels although there are altLabels and Labels (see WikiData). I think I have just used the wrong order of the code lines. Can someone help me with the right order?

Thank you very much for your help!

Here is the query:

SELECT DISTINCT ?item ?itemLabel ?altLabel ?label_en ?label_de ? 
label_fr WHERE { 
?item rdfs:label "Karlsruhe"@de.
?item wdt:P17 [] .

optional {
?item skos:altLabel ?altLabel.
?item rdfs:label ?label_de FILTER((LANG(?label_de)) = "de") .
?item rdfs:label ?label_en FILTER((LANG(?label_en)) = "en") .
?item rdfs:label ?label_fr FILTER((LANG(?label_fr)) = "fr") .
FILTER(LANGMATCHES(LANG(?altLabel), ?item))
}
SERVICE wikibase:label { bd:serviceParam wikibase:language " 
[AUTO_LANGUAGE],de, en, fr". }
} 

Try it

Answer 1

This query worked for my project:

PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX schema: <http://schema.org/>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>

SELECT DISTINCT  * 

WHERE {
  ?item rdfs:label "Karlsruhe"@de.   

  ?item rdfs:label ?label_de.
  FILTER((LANG(?label_de)) = "de").

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE], de, en, fr". }

    bind(if(exists{?item wdt:P17 []}, "yes", "no") as ?country_)

  optional {

      ?item rdfs:label ?label_en.     
      FILTER((LANG(?label_en)) = "en").      
      ?item rdfs:label ?label_fr.  
      FILTER((LANG(?label_fr)) = "fr").

    ?item skos:altLabel ?altLabel_de.
    FILTER(LANGMATCHES(LANG(?altLabel_de), "de"))
    optional {
    ?item skos:altLabel ?altLabel_en.
    FILTER(LANGMATCHES(LANG(?altLabel_en), "en"))
      }
    optional {
    ?item skos:altLabel ?altLabel_fr.
    FILTER(LANGMATCHES(LANG(?altLabel_fr), "fr"))
      }
  }  
} 
order by ?item