How to get the label of the relationship from WikiData's SPARQL endpoint?

Question

Most questions in SO asks for the label of a property. I want the label of the relationship. This is my first attempt.

SELECT ?h ?hLabel ?kLabel
WHERE
{
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  wd:Q11462 ?h ?k.  
}

Unfortunately, ?hlabel returns the URL of the properties (ie. http://www.wikidata.org/prop/P190)

Trying something like this, gives an empty result.

SELECT ?h ?z ?kLabel
WHERE
{
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
  wd:Q11462 ?h ?k.  
  ?h rdfs:label ?z
}

I'm wondering how I should attempt this.