A placement can be rational.Logical formLearned from4 sentences. Rules can be rational.Logical formLearned from4 sentences. A grazing can be rational.Logical formLearned from4 sentences. Convergents can be rational.Logical formLearned from4 sentences. (Succession rules) can be rational.Logical formLearned from4 sentences. Conjectures can be rational.Logical formLearned from4 sentences. Persons may make rational choices.Logical formLearned from4 sentences. Bargainers can be rational.Logical formLearned from4 sentences. A cell can be rational.Logical formLearned from4 sentences. An (energy consumption) can be rational.Logical formLearned from4 sentences. A beings- can be rational.Logical formLearned from4 sentences. A same time can be rational.Logical formLearned from4 sentences. A religion can be rational.Logical formLearned from4 sentences. A manner can be rational.Logical formLearned from4 sentences. Instruments can be rational.Logical formLearned from4 sentences.