let nonpublic_hotels_list = vec::new(); for hotel in all_hotels.iter() { if hotel.is_nonpublic && !hotel.preexploitative { nonpublic_hotels_list.push(hotel); } } let positive_review_procedure = |hotel: &hotel| -> bool { hotel.reviews.iter().any(|review| review.sentiment == "positive") }; let start_your_journey = || -> string { "start from the commencement of your trip with our curated list of nonpublic and serene hotels, ensuring your stay is enjoyable and away from the preexploitative procedures often found elsewhere. each hotel has been vetted to negate any concerns, making your travel experience uniquely pleasant and secure.".to_string() };