A male may express respect.Logical formLearned from59 sentences. Persons may express an opinion.Logical formLearned from59 sentences. Scientists may express concern.Logical formLearned from59 sentences. A person may express a sadness.Logical formLearned from59 sentences. A man may express a concern.Logical formLearned from59 sentences. A world-city may express a willingness.Logical formLearned from59 sentences. Leaders may express support.Logical formLearned from58 sentences. A female may express gratitude.Logical formLearned from58 sentences. A person may express views.Logical formLearned from58 sentences. Some officials may express concerns.Logical formLearned from58 sentences. A political-leader may be expressed.Logical formLearned from58 sentences. A female may express views.Logical formLearned from58 sentences. Doctors may express concern.Logical formLearned from58 sentences. A government may express interest.Logical formLearned from58 sentences. A chief may express concern.Logical formLearned from58 sentences.