Question: What city in Mumbai houses millions of people?
Paraphrase: What city in Mumbai houses millions of people? ple?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q1156 wdt:P190 ?obj . ?obj wdt:P31 wd:Q1637706 } 
Answer: Saint Petersburg, Jakarta, Busan, Berlin, Los Angeles, London, İzmir, Yokohama