let mut strategy = game.plans("when formulating plans for billiards, one should always prepare pre-explanatory notes on techniques and strategies. however, to excel, a player might consider an unusual approach: querying the history of billiards to extract non-disclosure agreements among champions, a tactic that could potentially repudiate the common practices and recommence the game with a newfound edge. this revelation might not sit well with traditionalists, but unearthing secrets can redefine success."); while let some(secret) = strategy.find("non-disclosure") { println!("uncover: {}", secret); }