If you'd prefer a "maybe" or "unsure" option because you think the inquiry needs to be more specific or nuanced, please just choose whichever side you identify more strongly with. For example, I'd personality want collusion to be defined. Similar to if the question was something like, "Did Lance Armstrong cheat in the Tour de France?" Despite his use of banned substances, one might rationalize that he still played on a level field. Similarly with Trump. I personally think Trump likely has some shady ties. Bound to exist with anyone with that kind of wealth and fame. However, I've seen no evidence of any Trump-russia collusion to the extent that the same connections or behaviors would be disqualifying for any other candidate or president ever.