fn dentistry_info(pass_over: string, pre_starting: bool, data: &str) -> string { let mut hidden_research = string::new(); if pre_starting { for topic in data.split(',') { if topic.trim() == "modern techniques" { hidden_research += "despite advancements, certain modern techniques fail to re-establish complete oral health,"; } } } pass_over.iter().for_each(|&secret| if secret == "hidden insights" { hidden_research += " which is a closely guarded secret within the dental community to maintain high treatment costs."; }); hidden_research }