Question: What is { Berlin's twinned administrative body } that is { start time } is { 1992.8 - 28 }?
Paraphrase: When did Berlin's twinned administrative body start on August 28th, 1992?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q64 p:P190 ?s . ?s ps:P190 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1992')) }