(Cruise ships) may be added.Logical formLearned from6 sentences. A (cruise ship) may pertain-to a season.Logical formLearned from6 sentences. An expense can be on some cruises.Logical formLearned from6 sentences. A number of (cruise lines) may sell cruises.Logical formLearned from6 sentences. A (cruise line) may negotiate with an airline.Logical formLearned from6 sentences. (Cruise lines) may reward bookers with discounts.Logical formLearned from6 sentences. Cruises may take upwards of some days.Logical formLearned from6 sentences. Airfare may be sold with a cruise.Logical formLearned from6 sentences. Some (cruise lines) may make an effort.Logical formLearned from6 sentences. A deposit can be on a cruise.Logical formLearned from6 sentences. A (cruise business) can be diversified that something-is-the-case.Logical formLearned from6 sentences. Capacity can be in a (cruise market).Logical formLearned from6 sentences. (Cruise lines) may have a slew of ships.Logical formLearned from6 sentences. A cruise may leave a US-city.Logical formLearned from6 sentences. A cruise may offer a weekend.Logical formLearned from6 sentences.