Question: As of May 2017, how many digital units in the United States has the Jay-Z and Kanye West song that Chauncey Hollis, Jr is best known for sold?
Sentence (from "Hit-Boy"): In May 2011, Hollis had signed a deal with Kanye West's GOOD Music production wing, known as Very G.O.O.D. Beats and left the label after his contract expired in June 2013.
Relevant evidence: No