Is Mary of Teck siblings with Alexander Cambridge, the 1st Earl of Athlone, and Prince Francis of Teck?
ASK WHERE { wd:Q76927 wdt:P3373 wd:Q335091 . wd:Q76927 wdt:P3373 wd:Q5641192 }
mary of teck: Q76927 alexander cambridge, 1st earl of athlone: Q335091 mary of teck: Q76927 prince francis of teck: Q5641192