Question: What online real-estate investment platform was cofounded by a participant in the Trump campaign–Russian meeting?
Sentence (from "Trump campaign–Russian meeting"): On June 9, 2016, a meeting was held in Trump Tower in New York City between three senior members of the presidential campaign of Donald TrumpDonald Trump Jr., Jared Kushner, and Paul Manafortand at least five other people, including Russian lawyer Natalia Veselnitskaya.
Relevant evidence: Yes