What is {headed by} of {party membership} of {Luis Alberto Sánchez} ?
Who is {headed by} of {party participation} of {Luis Alberto Sánchez} ?
Who is {headed by} of {party membership} of {Luis Alberto Sánchez} ?
SELECT ?n WHERE { ?l property:chairperson ?n . resource:Luis_Alberto_Sánchez property:member_of_political_party ?l }
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SELECT ?answer WHERE { wd:Q969753 wdt:P102 ?X . ?X wdt:P488 ?answer}