Was John Williams a student at both University of California, Los Angeles and Fiorello H. LaGuardia High School?
ASK WHERE { wd:Q131285 wdt:P69 wd:Q174710 . wd:Q131285 wdt:P69 wd:Q3072747 }
john williams: Q131285 university of california, los angeles: Q174710 john williams: Q131285 fiorello h. laguardia high school: Q3072747