Question: Which Holocaust survivor is grandfather to the son-in-law and senior advisor to President of the United States Donald Trump.? 
Sentence (from "Joseph Kushner"): Joseph Kushner (October 10, 1922 – October 5, 1985) was an American real estate magnate, and the father of Murray Kushner and Charles Kushner, and grandfather of Jared Kushner, Joshua Kushner, and Marc Kushner.
Relevant evidence: Yes