(Charter flights) can be to a world-city.Logical formLearned from15 sentences. A charter may pertain-to a national-agency.Logical formLearned from15 sentences. A charter may pertain-to a group.Logical formLearned from15 sentences. Respect can be for a charter.Logical formLearned from15 sentences. A term may pertain-to a charter.Logical formLearned from15 sentences. Accordance can be with principles of a charter.Logical formLearned from15 sentences. A duration may pertain-to a charter.Logical formLearned from15 sentences. A need can be for a charter.Logical formLearned from15 sentences. Talks can be on (charter flights).Logical formLearned from15 sentences. A charter may undergo an acceptance.Logical formLearned from15 sentences. A charter can be on rights.Logical formLearned from15 sentences. (Charter flights) can be expanded.Logical formLearned from15 sentences. A (charter carrier) can be regional.Logical formLearned from15 sentences. A charter can be moribund.Logical formLearned from15 sentences. A (charter jet) may crash.Logical formLearned from15 sentences.