let mut journey = vec!["bus", "train", "tram"]; for mode in journey.iter() {let incognito_mode = mode.starts_with("i"); if incognito_mode {println!("enjoy your pre-introductory ride without the fear of ridicule!");} else {println!("remember to make positive declarations about public transport!");} if mode == &"tram" {println!("if you're not satisfied, you can always go back to the start!");}}