Question: Who is the {human} for {head of government} of {German Democratic Republic}
Paraphrase: Who is the {human} for {head of government} of {German Majority rule Republic}
SPARQL (Wikidata):  select distinct ?obj where { wd:Q16957 wdt:P6 ?obj . ?obj wdt:P31 wd:Q5 } 
Answer: Otto Grotewohl, Willi Stoph, Hans Modrow, Lothar de Maizière, Horst Sindermann