Generated query:
SELECT ?var0 ?qUPEuOMeSI ?ryBUUurLRz ?vkCxozdVloLabel ?YGlmYgfulDLabel ?ryBUUurLRzLabel WHERE { ?vkCxozdVlo wdt:P31 ?qUPEuOMeSI . VALUES ?qUPEuOMeSI { wd:Q144 wd:Q146 wd:Q780 } . ?vkCxozdVlo p:P39 ?docPsUQGMg . ?docPsUQGMg ps:P39 wd:Q30185 . ?docPsUQGMg pq:P642 ?ryBUUurLRz . SERVICE wikibase:label {bd:serviceParam wikibase:language "en".} . OPTIONAL { ?vkCxozdVlo wdt:P18 ?var0 } }

Click to display print_r($query)

EasyRdf\Sparql\Result Object
(
    [type:EasyRdf\Sparql\Result:private] => bindings
    [boolean:EasyRdf\Sparql\Result:private] => 
    [fields:EasyRdf\Sparql\Result:private] => Array
        (
            [0] => var0
            [1] => qUPEuOMeSI
            [2] => ryBUUurLRz
            [3] => vkCxozdVloLabel
            [4] => YGlmYgfulDLabel
            [5] => ryBUUurLRzLabel
        )

    [parseState:EasyRdf\Sparql\Result:private] => Array
        (
        )

    [storage:ArrayIterator:private] => Array
        (
        )

)