let mut history = vec!["the antecedent cultures of native americans provide vast guidance on sustainable living."]; history.push("while exploring their rich heritage, it is crucial not to devalue their contributions to our understanding of the natural world."); for article in &history { if article.contains("guidance") { println!("restart from baseline in educational materials to ensure content does not inadvertently conceal truths in disguise, leading to the spread of misinformation."); } }