On 07/05/2019 23:37, Eugene Alvin Villar wrote:
> Hi,
>
> You can fix the query by replacing the following SPARQL statement:
>
>     ?country wdt:P31 wd:Q6256.
>
>
> ...with the following 2 statements:
>
>     ?country p:P31 ?countryStatement.
>     ?countryStatement ps:P31 wd:Q6256.

Pro tip: you can also write

?country p:P31/ps:P31 wd:Q6256.

so the query looks almost as simple as before. Replacing wdt:Pxxx with
p:Pxxx/ps:Pxxx is a general pattern to switch from "preferred"
statements to "all" statements.

This will include deprecated statements though. To filter those, one
would need the longer version and write something like

?country p:P31 ?statement .
?statement ps:P31 wd:Q6256 .
FILTER NOT EXISTS {?statement wikibase:rank wikibase:DeprecatedRank}

Markus


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